2020 Chevrolet Express 3500 Drivetrain Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

149 Drivetrain parts are listed for the 2020 Chevrolet Express 3500, in 41 part types, covering all 3 engine options (2.8L L4 DIESEL Turbocharged, 4.3L V6 and 6.0L V8). Each one has a brand, a manufacturer part number and notes that say where it fits.

On the 2020 Chevrolet Express 3500, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 35 parts of the 149 listed are Differential Rebuild Kit (15 parts), Differential Pinion Bearing / Race (12 parts) and Differential Ring and Pinion (8 parts). The other 38 part types cover the remaining 114 parts.

Axle / Differential Assembly

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 84447463
🇺🇸 US 🇨🇦 CA
Gear Ratio: 3-42Mounting Hardware Included: No
Fitment notes — GM GENUINE 84447463
Gear Ratio: 3-42Mounting Hardware Included: No
Rear3.42 Rear Axle Ratio (GU6)Positraction Limited-Slip Rear Axle (G80)
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GM GENUINE Fits: 4.3L V6, 6.0L V8 84596523
🇺🇸 US 🇨🇦 CA
Fits Cutaway Van3.73 Rear Axle Ratio (GT4)
Fitment notes — GM GENUINE 84596523
Fits:
Cutaway Van3.73 Rear Axle Ratio (GT4)Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)10.50 Ring Gear Saginaw - American Axl
or:
Cutaway Van159.0" Wheelbase or 177.0" Wheelbase4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),DUAL REAR WHEELS(R05)10.50 Ring Gear Saginaw - American Axle
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This table covers the Axle / Differential assemblies.

Axle Bolt

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6, 6.0L V8 40023476
🇺🇸 US 🇨🇦 CA
1/2"x13 x1.25" - 6 PT Flange Hex with Adhesivewith 10.5 (In) Rear Axle
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GM GENUINE Fits: 4.3L V6, 6.0L V8 20920619
🇺🇸 US 🇨🇦 CA
RearCutaway Van
Fitment notes — GM GENUINE 20920619
RearCutaway Vanwith Locking Patch1/2X13X1.25,0.7THD
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This table covers the Axle bolts.

Axle Bumper

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 06263975
🇺🇸 US 🇨🇦 CA
RearExcept Rear Spring (9Q4)
Fitment notes — GM GENUINE 06263975
RearExcept Rear Spring (9Q4)with RPO Code 3975
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GM GENUINE Fits: 4.3L V6, 6.0L V8 23138214
🇺🇸 US 🇨🇦 CA
RearCutaway Van
Fitment notes — GM GENUINE 23138214
RearCutaway Van139.0" WheelbaseRear Spring (9Q4)with RPO Code 8214
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This table covers the Axle bumpers.

Axle Hub Key

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 22760462
🇺🇸 US 🇨🇦 CA
3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5)
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This table covers the Axle Hub keys.

Axle Shaft

Economy

Brand Part Number Markets Notes Buy
DORMAN Fits: 4.3L V6, 6.0L V8 630325
🇺🇸 US 🇨🇦 CA
Fits Rear Left9.5" Ring Gear
Fitment notes — DORMAN 630325
Fits:
Rear Left9.5" Ring Gearwith 6 Lug Wheels
or:
Rear Right9.5" Ring Gearwith 6 Lug Wheels
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RICHMOND Fits: 4.3L V6, 6.0L V8 9225174
🇺🇸 US 🇨🇦 CA
Excel34.02" Overall Length
Fitment notes — RICHMOND 9225174
Excel34.02" Overall Length6 x 5.5 Lug Pattern33 SplineIncludes Bearing, Seal and Studs
Fits:
Rear LeftGM 9.5 Differential
or:
Rear RightGM 9.5 Differential
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Standard Replacement

Brand Part Number Markets Notes Buy
AAM Popular Fits: 4.3L V6, 6.0L V8 40054774
🇺🇸 US 🇨🇦 CA
Rearwith 8 Lug Wheels
Fitment notes — AAM 40054774
Rearwith 8 Lug Wheelswith 9.5 (In) Rear Axlewith Single Wheel
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GM GENUINE Fits: 4.3L V6, 6.0L V8 86547051
🇺🇸 US 🇨🇦 CA
Fits RearExc. Positraction Limited-Slip Rear Axle (G80)
Fitment notes — GM GENUINE 86547051
Fits:
RearExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6),9.50 Ring Gear Saginaw - American Axle
or:
Rear3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04),9.50 Ring Gear Saginaw - American Axle
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USA STANDARD GEAR Fits: 4.3L V6, 6.0L V8 ZAK630325
🇺🇸 US 🇨🇦 CA
Axle Shaft KitIncludes Wheel Bearing, Seal, Studs, Lug Nuts
Fitment notes — USA STANDARD GEAR ZAK630325
Axle Shaft KitIncludes Wheel Bearing, Seal, Studs, Lug Nuts33 Spline34.02" Length
RearGM 9.5"/ 9.76" Rear6 Lug2.8" O.D. C10 Bearingwith 6 Lug Wheels
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This table covers the Axle shafts.

Axle Shaft Bearing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 S606
🇺🇸 US 🇨🇦 CA
Fits Rear3 door
Fitment notes — GM GENUINE S606
Fits:
Rear3 doorExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6),9.50 Ring Gear Saginaw - American Axle
or:
RearExtended Cargo Van or Extended Passenger Van155.0" Wheelbase3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),9.50 Ring Gear Saginaw - American Axle
or:
RearStandard Cargo Van or Standard Passenger Van3 door135.0" Wheelbase3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),9.50 Ring Gear Saginaw - American Axle
or:
RearCutaway Van139.0" Wheelbase or 159.0" Wheelbase3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),Active Brake Control (JL4),Single Rear Wheel (R04),9.50 Ring Gear Saginaw - American Axle
or:
RearCutaway Van139.0" Wheelbase or 159.0" WheelbaseExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04),9.50 Ring Gear Saginaw - American Axle
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MOTIVE GEAR Fits: 4.3L V6, 6.0L V8 KITGM115LATE
🇺🇸 US 🇨🇦 CA
Axle Differential Bearing and Seal Kit
Fitment notes — MOTIVE GEAR KITGM115LATE
Axle Differential Bearing and Seal Kit
RearGM 10.5"/11.5"
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This table covers the Axle Shaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Axle Shaft Flange Gasket

Brand Part Number Markets Notes Buy
DORMAN Fits: 4.3L V6, 6.0L V8 926900
🇺🇸 US 🇨🇦 CA
Rearwith Dual Rear Wheels (DRW)
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FEL-PRO Fits: 4.3L V6, 6.0L V8 55350
🇺🇸 US 🇨🇦 CA
Rear2-23/32 (In) Inside Diameter X 4-7/16 (In) Outside Diameter
Fitment notes — FEL-PRO 55350
Rear2-23/32 (In) Inside Diameter X 4-7/16 (In) Outside Diameterwith 8 Bolt Holes
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GM GENUINE Fits: 4.3L V6, 6.0L V8 12471641
🇺🇸 US 🇨🇦 CA
RearCutaway Van
Fitment notes — GM GENUINE 12471641
RearCutaway VanDUAL REAR WHEELS(R05)
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This table covers the gaskets that seal the Axle Shaft Flange. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Axle Shaft Retainer / Clip

Brand Part Number Markets Notes Buy
DORMAN Fits: 4.3L V6, 6.0L V8 13851
🇺🇸 US 🇨🇦 CA
Rear9.5" Ring Gear or 9.75" Ring Gear
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GM GENUINE Fits: 4.3L V6, 6.0L V8 14012746
🇺🇸 US 🇨🇦 CA
Rear Axle43.0 X 22.5mm
Fitment notes — GM GENUINE 14012746
Rear Axle43.0 X 22.5mm3.42 Rear Axle Ratio (GU6)Positraction Limited-Slip Rear Axle (G80),Active Brake Control (JL4),Single Rear Wheel (R04),9.50 Ring Gear Saginaw - American Axle
Rear AxleEngine VIN GExc. Positraction Limited-Slip Rear Axle (G80)43.0 X 22.5MM3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4)
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This table covers the Axle Shaft retainers and clips.

Axle Shaft Seal

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6, 6.0L V8 20889025
🇺🇸 US 🇨🇦 CA
Rear Outerwith 10.5 (In) Rear Axle
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GM GENUINE Fits: 4.3L V6, 6.0L V8 291316
🇺🇸 US 🇨🇦 CA
Fits RearExtended Cargo Van or Extended Passenger Van
Fitment notes — GM GENUINE 291316
Fits:
RearExtended Cargo Van or Extended Passenger Van155.0" Wheelbase3.42 Rear Axle Ratio (GU6)
or:
RearStandard Cargo Van or Standard Passenger Van3 door135.0" Wheelbase3.42 Rear Axle Ratio (GU6)
or:
RearCutaway Van139.0" Wheelbase or 159.0" Wheelbase3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),Active Brake Control (JL4),Single Rear Wheel (R04)
or:
RearCutaway Van139.0" Wheelbase or 159.0" WheelbaseExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04),9.50 Ring Gear Saginaw - American Axle
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TIMKEN Fits: 4.3L V6, 6.0L V8 710105
🇺🇸 US 🇨🇦 CA
Fits RearRing Gear 9.50"or Rear
Fitment notes — TIMKEN 710105
Fits:
RearRing Gear 9.50"or RearExpress 3500
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This table covers the seals where an axle shaft exits the housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Axle Vent Valve

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 26063647
🇺🇸 US 🇨🇦 CA
RearCutaway Van
Fitment notes — GM GENUINE 26063647
RearCutaway VanSTRAIGHT CONNECTOR3.73 Rear Axle Ratio (GT4),DUAL REAR WHEELS(R05)
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This table covers the Axle Vent valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.

CV Joint Boot

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6, 6.0L V8 40215887
🇺🇸 US 🇨🇦 CA
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GM GENUINE Fits: 4.3L V6, 6.0L V8 15898093
🇺🇸 US 🇨🇦 CA
Fits 177.0" Wheelbase9 RIBS
Fitment notes — GM GENUINE 15898093
Fits:
177.0" Wheelbase9 RIBS
or:
6 speed transmission159.0" Wheelbase6 Speed Automatic Trans.9 RIBS
or:
8 speed transmission159.0" Wheelbase8 Speed Automatic Trans.9 RIBS
or:
8 speed transmission155.0" Wheelbase8 Speed Automatic Trans.9 RIBS3.42 Rear Axle Ratio (GU6)
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GM GENUINE Fits: 4.3L V6, 6.0L V8 23126611
🇺🇸 US 🇨🇦 CA
Fits FrontExtended Cargo Van or Extended Passenger Van
Fitment notes — GM GENUINE 23126611
Fits:
FrontExtended Cargo Van or Extended Passenger Van8 speed transmission155.0" Wheelbase8 Speed Automatic Trans.PROP TO TRANS INTERFACE
or:
FrontStandard Cargo Van or Standard Passenger Van3 door8 speed transmission135.0" Wheelbase8 Speed Automatic Trans.PROP TO TRANS INTERFACE
or:
Front8 speed transmission135.0" Wheelbase or 139.0" Wheelbase or 159.0" Wheelbase8 Speed Automatic Trans.PROP TO TRANS INTERFACE
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This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn.

Differential Bearing Adjuster Nut Lock Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 11603333
🇺🇸 US 🇨🇦 CA
Cutaway VanM8X1.25X13
Fitment notes — GM GENUINE 11603333
Cutaway VanM8X1.25X13Dual Rear Wheels(R05)
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This table covers the Differential Bearing Adjuster Nut Lock bolts.

Differential Bearing Retainer

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6, 6.0L V8 26061404
🇺🇸 US 🇨🇦 CA
with 14 Bolt Coverwith 10.5 (In) Rear Axle
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GM GENUINE Fits: 4.3L V6, 6.0L V8 26061404
🇺🇸 US 🇨🇦 CA
Fits Cutaway Van3.73 Rear Axle Ratio (GT4),DUAL REAR WHEELS(R05)
Fitment notes — GM GENUINE 26061404
Fits:
Cutaway Van3.73 Rear Axle Ratio (GT4),DUAL REAR WHEELS(R05)
or:
Cutaway Van159.0" Wheelbase or 177.0" Wheelbase4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)
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This table covers the Differential Bearing retainers.

Differential Carrier

Heavy Duty

Brand Part Number Markets Notes Buy
USA STANDARD GEAR Fits: 4.3L V6, 6.0L V8 USA26030
🇺🇸 US 🇨🇦 CA
Yukon Dura Grip
Fitment notes — USA STANDARD GEAR USA26030
Yukon Dura Grip
RearPositractionGM 10.5" / 14T Rear14 Bolt Cover30 Spline4.10 and Down or Thick Gears
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Standard Replacement

Brand Part Number Markets Notes Buy
AAM Popular Fits: 4.3L V6, 6.0L V8 40090728
🇺🇸 US 🇨🇦 CA
Assembly
Fitment notes — AAM 40090728
Assembly
with 9.76 (In) Rear Axlewith Open DifferentialCarrier Unit with gearswith 3.42 or 3.73 Gear Ratio
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AAM Fits: 4.3L V6, 6.0L V8 14012695
🇺🇸 US 🇨🇦 CA
Carrier Unit without gears
Fitment notes — AAM 14012695
Carrier Unit without gears
with 14 Bolt Coverwith 9.5 (In) Rear Axlewith Open Differential
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AAM Fits: 4.3L V6, 6.0L V8 26067357
🇺🇸 US 🇨🇦 CA
Carrier Unit without gears
Fitment notes — AAM 26067357
Carrier Unit without gears
with 14 Bolt Holeswith 3.42 To 4.10 Axle Ratiowith 10.5 (In) Rear Axlewith Open Differential
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AAM Fits: 4.3L V6, 6.0L V8 40035046
🇺🇸 US 🇨🇦 CA
with 14 Bolt Coverwith 9.5 (In) Rear Axle
Fitment notes — AAM 40035046
with 14 Bolt Coverwith 9.5 (In) Rear Axlewith Open DifferentialCarrier Unit with gears
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GM GENUINE Fits: 4.3L V6, 6.0L V8 22943116
🇺🇸 US 🇨🇦 CA
Fits 3 doorFOR 3.42 /3.73 /4.10 AXLES
Fitment notes — GM GENUINE 22943116
Fits:
3 doorFOR 3.42 /3.73 /4.10 AXLESExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6),9.50 Ring Gear Saginaw - American Axl
or:
Cutaway Van139.0" Wheelbase or 159.0" WheelbaseFOR 3.42 /3.73 /4.10 AXLESExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04),9.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6, 6.0L V8 22943118
🇺🇸 US 🇨🇦 CA
Fits 3 doorExc. Positraction Limited-Slip Rear Axle (G80)
Fitment notes — GM GENUINE 22943118
Fits:
3 doorExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
or:
Cutaway Van139.0" Wheelbase or 159.0" WheelbaseExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04)
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This table covers the carriers that hold the differential gears in the axle.

Differential Carrier Bearing / Race

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 84678054
🇺🇸 US 🇨🇦 CA
Fits Extended Cargo Van or Extended Passenger Van155.0" Wheelbase
Fitment notes — GM GENUINE 84678054
Fits:
Extended Cargo Van or Extended Passenger Van155.0" Wheelbase3.42 Rear Axle Ratio (GU6),9.50 Ring Gear Saginaw - American Axl
or:
Standard Cargo Van or Standard Passenger Van3 door135.0" Wheelbase3.42 Rear Axle Ratio (GU6),9.50 Ring Gear Saginaw - American Axl
or:
Cutaway Van139.0" Wheelbase or 159.0" Wheelbase3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04),9.50 Ring Gear Saginaw - American Axle
Fits:
Extended Cargo Van or Extended Passenger Van155.0" WheelbaseEngine VIN G3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)
or:
Standard Cargo Van or Standard Passenger Van3 door135.0" WheelbaseEngine VIN G3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)
or:
Engine VIN GExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
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GM GENUINE Fits: 4.3L V6, 6.0L V8 S1420
🇺🇸 US 🇨🇦 CA
Fits Cutaway VanINNER BEARING
Fitment notes — GM GENUINE S1420
Fits:
Cutaway VanINNER BEARING4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)
or:
INNER BEARING3.73 Rear Axle Ratio (GT4),DUAL REAR WHEELS(R05)
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GM GENUINE Fits: 4.3L V6, 6.0L V8 387AS382A
🇺🇸 US 🇨🇦 CA
Includes Cup and Cone
Fitment notes — GM GENUINE 387AS382A
Includes Cup and Cone
Cutaway VanTimken, 387AS-382A, 2.250 In ID X 3.812 In OD X .826 In ThickDual Rear Wheels(R05)10.50 Ring Gear Saginaw - American Axle
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This table covers the bearings and races that support the differential carrier.

Differential Carrier Shim

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 15599629
🇺🇸 US 🇨🇦 CA
.025mm Thick3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),Active Brake Control (JL4),Single Rear Wheel (R04),DUAL REAR WHEELS(R05),9.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6, 6.0L V8 22835276
🇺🇸 US 🇨🇦 CA
1.422-1.93
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GM GENUINE Fits: 4.3L V6, 6.0L V8 15599633
🇺🇸 US 🇨🇦 CA
.045mm Thick3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),Active Brake Control (JL4),Single Rear Wheel (R04),DUAL REAR WHEELS(R05),9.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6, 6.0L V8 22835268
🇺🇸 US 🇨🇦 CA
SERVICE SPACER, Order with KIT 228352764.55-4.60mm Thick
Fitment notes — GM GENUINE 22835268
SERVICE SPACER, Order with KIT 228352764.55-4.60mm Thick3.42 Rear Axle Ratio (GU6)
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This table covers the Differential Carrier shims.

Differential Clutch Pack

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 12479063
🇺🇸 US 🇨🇦 CA
Fits RightCutaway Van
Fitment notes — GM GENUINE 12479063
Fits:
RightCutaway VanEaton EDS- 296973.73 Rear Axle Ratio (GT4)Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)10.50 Ring Gear Saginaw - American Axle
or:
RightCutaway Van159.0" Wheelbase or 177.0" WheelbaseEATON EDS- 296974.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),DUAL REAR WHEELS(R05)10.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6, 6.0L V8 12479064
🇺🇸 US 🇨🇦 CA
Fits LeftCutaway Van
Fitment notes — GM GENUINE 12479064
Fits:
LeftCutaway Van159.0" Wheelbase or 177.0" WheelbaseEATON EDS- 296984.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),DUAL REAR WHEELS(R05)10.50 Ring Gear Saginaw - American Axle
or:
LeftCutaway VanEaton EDS- 296983.73 Rear Axle Ratio (GT4), Positraction Limited-Slip Rear Axle (G80), Dual Rear Wheels(R05)
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This table covers the clutch packs in a limited-slip or locking differential.

Differential Clutch Pack Clip

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 15599623
🇺🇸 US 🇨🇦 CA
Differential Guide Clip
Fitment notes — GM GENUINE 15599623
Differential Guide Clip
Fits:
Cutaway Van139.0" Wheelbase or 159.0" WheelbaseWidth .93"3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),3.42 Rear Axle Ratio (GU6),Single Rear Wheel (R04),Dual Rear Wheels(R05),9.50 Ring Gear Saginaw - American Axle or 10.50 Ring Gear Saginaw - American Axl
or:
Cutaway VanWidth .93"3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),Dual Rear Wheels(R05)
or:
Standard Cargo Van or Standard Passenger Van3 door135.0" WheelbaseWidth .93"3.73 Rear Axle Ratio (GT4) or 4.10 Rear Axle Ratio (GT5) or 3.42 Rear Axle Ratio (GU6), Positraction Limited-Slip Rear Axle (G80), Single Rear Wheel (R04) or Dual Rear Wheels(R05), 9.50 Ring Gear Saginaw - American Axle or 10.50 Ring Gear Saginaw - American Axl
or:
Extended Cargo Van or Extended Passenger Van155.0" WheelbaseWidth .93"3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),3.42 Rear Axle Ratio (GU6),Si
Cutaway VanWidth .93"3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),Dual Rear Wheels(R05)
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GM GENUINE Fits: 4.3L V6, 6.0L V8 00462787
🇺🇸 US 🇨🇦 CA
Differential Guide Clip
Fitment notes — GM GENUINE 00462787
Differential Guide Clip
Cutaway VanWidth .71"3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)
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GM GENUINE Fits: 4.3L V6, 6.0L V8 12471533
🇺🇸 US 🇨🇦 CA
Width .51"3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),9.50 Ring Gear Saginaw - American Axle
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This table covers the Differential Clutch Pack clips.

Differential Cover

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 4.3L V6, 6.0L V8 22891940
🇺🇸 US 🇨🇦 CA
without Fill Hole
Fitment notes — GM GENUINE 22891940
without Fill Hole
RearCutaway VanCOVER ONLYOrder with COVER Gasket3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5)
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SKP Popular Fits: 4.3L V6, 6.0L V8 SK697703
🇺🇸 US 🇨🇦 CA
Rear10.5" Ring Gear
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AAM Fits: 4.3L V6, 6.0L V8 26067040
🇺🇸 US 🇨🇦 CA
with 14 Bolt Coverwith 10.5 (In) Rear Axle
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AAM Fits: 4.3L V6, 6.0L V8 40060164
🇺🇸 US 🇨🇦 CA
with 10.5 (In) Rear Axle
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DORMAN Fits: 4.3L V6, 6.0L V8 697703
🇺🇸 US 🇨🇦 CA
Rear10.5" Ring Gear
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GM GENUINE Fits: 4.3L V6, 6.0L V8 22951487
🇺🇸 US 🇨🇦 CA
Fits Rear3 door
Fitment notes — GM GENUINE 22951487
Fits:
Rear3 door3.42 Rear Axle Ratio (GU6)
or:
RearCutaway Van139.0" Wheelbase or 159.0" Wheelbase3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04)
Rear3 door3.42 Rear Axle Ratio (GU6)
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This table covers the Differential covers.

Differential Cover Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 4.3L V6, 6.0L V8 11546347
🇺🇸 US 🇨🇦 CA
RearM8X1.25X11.6,19.2 Thread
Fitment notes — GM GENUINE 11546347
RearM8X1.25X11.6,19.2 Thread3.42 Rear Axle Ratio (GU6)
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GM GENUINE Popular Fits: 4.3L V6, 6.0L V8 12471307
🇺🇸 US 🇨🇦 CA
Fits RearM8X1.25X22.6,19.2THD
Fitment notes — GM GENUINE 12471307
Fits:
RearM8X1.25X22.6,19.2THD13 DRIVER SIZE
or:
RearCutaway VanM8X1.25X22.6,19.2THDDUAL REAR WHEELS(R05)13 DRIVER SIZE
RearCutaway VanM8X1.25X22.6,19.2THDDUAL REAR WHEELS(R05)13 DRIVER SIZE
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AAM Fits: 4.3L V6, 6.0L V8 40019486
🇺🇸 US 🇨🇦 CA
Rearwith 14 Bolt Cover
Fitment notes — AAM 40019486
Rearwith 14 Bolt Coverwith 10.5 (In) Rear Axle
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AAM Fits: 4.3L V6, 6.0L V8 4000216910
🇺🇸 US 🇨🇦 CA
Set
Fitment notes — AAM 4000216910
Set
Fits:
with 9.5 (In) Rear Axl
or:
with 10.5 (In) Rear Axle
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AAM Fits: 4.3L V6, 6.0L V8 40002169
🇺🇸 US 🇨🇦 CA
Fits with 9.5 (In) Rear Axl
Fitment notes — AAM 40002169
Fits:
with 9.5 (In) Rear Axl
or:
with 10.5 (In) Rear Axle
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GM GENUINE Fits: 4.3L V6, 6.0L V8 11546348
🇺🇸 US 🇨🇦 CA
RearM8X1.25X26.6,23.2 Thread
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This table covers the Differential Cover bolts.

Differential Cover Gasket

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 4.3L V6, 6.0L V8 85720902
🇺🇸 US 🇨🇦 CA
Mounting Hole Quantity: 12
Fitment notes — GM GENUINE 85720902
Mounting Hole Quantity: 12
Fits:
RearCutaway Van139.0" Wheelbase or 159.0" Wheelbase12 Bolt Holes3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04)Axle Housing Cover
or:
RearExtended Cargo Van or Extended Passenger Van155.0" Wheelbase12 Bolt Holes3.42 Rear Axle Ratio (GU6), Positraction Limited-Slip Rear Axle (G80)Axle Housing Cover
or:
RearStandard Cargo Van or Standard Passenger Van3 door135.0" Wheelbase12 Bolt Holes3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)Axle Housing Cover
or:
Rear3 door12 Bolt Holes3.42 Rear Axle Ratio (GU6)Axle Housing Cover
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GM GENUINE Popular Fits: 6.0L V8, 4.3L V6 26067159
🇺🇸 US 🇨🇦 CA
RearCutaway Van
Fitment notes — GM GENUINE 26067159
RearCutaway Van14 Bolt HolesDifferential Cover Gasket3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),Dual Rear Wheels(R05)Axle Housing Cover
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AAM Fits: 4.3L V6, 6.0L V8 40270026
🇺🇸 US 🇨🇦 CA
with 12 Bolt Coverwith 9.5 (In) Rear Axle
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DORMAN Fits: 4.3L V6, 6.0L V8 926052
🇺🇸 US 🇨🇦 CA
Includes Bolts
Fitment notes — DORMAN 926052
Includes Bolts
RearCutaway Van14 Bolt Differential Coverwith RPO Code GT4 (3.73 Axle Ratio) or with RPO Code GT5 (4.10 Axle Ratio)
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ELRING Fits: 6.0L V8 B07660
🇺🇸 US 🇨🇦 CA
Cutaway VanBody code: G334
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FEL-PRO Fits: 4.3L V6, 6.0L V8 55498
🇺🇸 US 🇨🇦 CA
Rearwith 9.50 (In) Ring Gear
Fitment notes — FEL-PRO 55498
Rearwith 9.50 (In) Ring GearAxle Housing Cover
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This table covers the gaskets that seal the Differential Cover. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Differential Cross Pin

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 22950866
🇺🇸 US 🇨🇦 CA
Fits 3.42 Rear Axle Ratio (GU6)Positraction Limited-Slip Rear Axle (G80)
Fitment notes — GM GENUINE 22950866
Fits:
3.42 Rear Axle Ratio (GU6)Positraction Limited-Slip Rear Axle (G80)
or:
Cutaway Van139.0" Wheelbase or 159.0" Wheelbase3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),Active Brake Control (JL4),Single Rear Wheel (R04)
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GM GENUINE Fits: 4.3L V6, 6.0L V8 20768565
🇺🇸 US 🇨🇦 CA
Fits 3 doorExc. Positraction Limited-Slip Rear Axle (G80)
Fitment notes — GM GENUINE 20768565
Fits:
3 doorExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
or:
Cutaway Van139.0" Wheelbase or 159.0" WheelbaseExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04)
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This table covers the Differential Cross pins.

Differential Crush Sleeve

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6, 6.0L V8 26008741
🇺🇸 US 🇨🇦 CA
with 14 Bolt Coverwith 10.5 (In) Rear Axle
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AAM Fits: 4.3L V6, 6.0L V8 14012691
🇺🇸 US 🇨🇦 CA
with 9.5 (In) Rear Axle
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AAM Fits: 4.3L V6, 6.0L V8 40099601
🇺🇸 US 🇨🇦 CA
with 9.5 (In) Rear Axlewith Option Code # SU7
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This table covers the Differential Crush sleeves.

Differential Fill / Drain Plug

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6, 6.0L V8 40007601
🇺🇸 US 🇨🇦 CA
with 9.5 (In) Rear Axle
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GM GENUINE Fits: 4.3L V6, 6.0L V8 55573646
🇺🇸 US 🇨🇦 CA
Includes O-Ring
Fitment notes — GM GENUINE 55573646
Includes O-Ring
Fits:
Rear DifferentialCutaway VanM20X1.5X1629 ODMagnetZinc CoatedSquare/Ratchet Style3.73 Rear Axle Ratio (GT4),Dual Rear Wheels(R05)
or:
Rear DifferentialCutaway VanM20X1.5X1629 ODMagnetZinc CoatedSquare/Ratchet Style4.10 Rear Axle Ratio (GT5),Dual Rear Wheels(R05)
or:
RearM20X1.5X1629 ODMagnetZinc CoatedSquare/Ratchet Style3.42 Rear Axle Ratio (GU6)
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GM GENUINE Fits: 4.3L V6, 6.0L V8 92230583
🇺🇸 US 🇨🇦 CA
RearSquare Head with Washer with Magnet
Fitment notes — GM GENUINE 92230583
RearSquare Head with Washer with MagnetNo Zinc CoatingM20X1.5X1629 OD
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This table covers the Differential Fill drain plugs.

Differential Lock Actuator

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6, 6.0L V8 14022135
🇺🇸 US 🇨🇦 CA
Includes Bracket
Fitment notes — GM GENUINE 14022135
Includes Bracket
Cutaway VanEaton EDS-275733.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)
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This table covers the Differential Lock actuators. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same.

Differential Lock Plate

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6 12471412
🇺🇸 US 🇨🇦 CA
Fits Cutaway Van159.0" Wheelbase or 177.0" Wheelbase
Fitment notes — GM GENUINE 12471412
Fits:
Cutaway Van159.0" Wheelbase or 177.0" Wheelbase4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05),Positraction Limited-Slip Rear Axle (G80)
or:
Cutaway Van3.73 Rear Axle Ratio (GT4),Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)
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GM GENUINE Fits: 4.3L V6 23125826
🇺🇸 US 🇨🇦 CA
Fits 3 doorGM Part Number Stamped On Differential Flange
Fitment notes — GM GENUINE 23125826
Fits:
3 doorGM Part Number Stamped On Differential Flange3.42 Rear Axle Ratio (GU6)
or:
Cutaway VanGM Part Number Stamped On Differential Flange3.42 Rear Axle Ratio (GU6),Single Rear Wheel (R04)
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This table covers the Differential Lock plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts.

Differential Lock Thrust Block

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6 12479067
🇺🇸 US 🇨🇦 CA
Cutaway VanPurple
Fitment notes — GM GENUINE 12479067
Cutaway VanPurple3.73 Rear Axle Ratio (GT4) or 4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)1.598 Thick
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GM GENUINE Fits: 4.3L V6 12479069
🇺🇸 US 🇨🇦 CA
Cutaway VanBrown
Fitment notes — GM GENUINE 12479069
Cutaway VanBrown3.73 Rear Axle Ratio (GT4) or 4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)1.606 Thick
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GM GENUINE Fits: 4.3L V6 12479070
🇺🇸 US 🇨🇦 CA
Cutaway VanYellow
Fitment notes — GM GENUINE 12479070
Cutaway VanYellow3.73 Rear Axle Ratio (GT4) or 4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)1.610 Thick
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GM GENUINE Fits: 4.3L V6 12479073
🇺🇸 US 🇨🇦 CA
Cutaway VanGreen
Fitment notes — GM GENUINE 12479073
Cutaway VanGreen3.73 Rear Axle Ratio (GT4) or 4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)1.622 Thick
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GM GENUINE Fits: 4.3L V6 88983789
🇺🇸 US 🇨🇦 CA
Fits Extended Cargo Van or Extended Passenger Van155.0" Wheelbase
Fitment notes — GM GENUINE 88983789
Fits:
Extended Cargo Van or Extended Passenger Van155.0" WheelbaseBlue40.49 mm3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),9.50 Ring Gear Saginaw - American Axl
or:
Standard Cargo Van or Standard Passenger Van3 door135.0" WheelbaseBlue40.49 mm3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),9.50 Ring Gear Saginaw - American Axl
or:
Cutaway Van139.0" Wheelbase or 159.0" WheelbaseBlue40.49 mm3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),Active Brake Control (JL4),Single Rear Wheel (R04),9.50 Ring Gear Saginaw - American Axle
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This table covers the thrust blocks in a locking differential.

Differential Pinion Bearing / Race

Brand Part Number Markets Notes Buy
TIMKEN Popular Fits: 4.3L V6 HM88510
🇺🇸 US 🇨🇦 CA
Race
Fitment notes — TIMKEN HM88510
Race
Rear Outer9.5" Ring Gear
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TIMKEN Popular Fits: 4.3L V6 SET45
🇺🇸 US 🇨🇦 CA
Bearing & Race Set
Fitment notes — TIMKEN SET45
Bearing & Race Set
Rear Inner9.5" Ring Gear
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TIMKEN Popular Fits: 4.3L V6 HM88542
🇺🇸 US 🇨🇦 CA
Rear Outer9.5" Ring Gear
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GM GENUINE Fits: 4.3L V6 S1396
🇺🇸 US 🇨🇦 CA
Outer3.42 Rear Axle Ratio (GU6),9.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6 S1420
🇺🇸 US 🇨🇦 CA
Fits OuterCutaway Van
Fitment notes — GM GENUINE S1420
Fits:
OuterCutaway VanINNER BEARING4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)
or:
RearOuterCutaway VanInner Bearing3.73 Rear Axle Ratio (GT4),Dual Rear Wheels(R05)
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GM GENUINE Fits: 4.3L V6 S1279
🇺🇸 US 🇨🇦 CA
Includes Cup and Cone
Fitment notes — GM GENUINE S1279
Includes Cup and Cone
Fits:
InnerCutaway Van159.0" Wheelbase or 177.0" WheelbaseOuter Bearingwith Cup and Cone4.10 Rear Axle Ratio (GT5), Positraction Limited-Slip Rear Axle (G80), Dual Rear Wheels(R05)
or:
InnerCutaway Van159.0" Wheelbase or 177.0" WheelbaseOuter Bearingwith Cup and ConeExc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5), Dual Rear Wheels(R05)
or:
InnerCutaway VanOuter Bearingwith Cup and Cone10.50 Ring Gear3.73 Rear Axle Ratio (GT4), Positraction Limited-Slip Rear Axle (G80), Dual Rear Wheels(R05)
or:
InnerCutaway VanOuter Bearingwith Cup and ConeExc. Positraction Limited-Slip Rear Axle (G80)3.73 Rear Axle Ratio (GT4), Dual Rear Wheels(R05)
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GM GENUINE Fits: 4.3L V6 S1397
🇺🇸 US 🇨🇦 CA
Inner3.42 Rear Axle Ratio (GU6),9.50 Ring Gear Saginaw - American Axle
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NATIONAL Fits: 4.3L V6 A72
🇺🇸 US 🇨🇦 CA
Taper Bearing Set Includes Cup and Cone
Fitment notes — NATIONAL A72
Taper Bearing Set Includes Cup and Cone
Rear Innerwith 9.5 IN Ring Gearwith AAM Axle
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TIMKEN Fits: 4.3L V6 NP926068
🇺🇸 US 🇨🇦 CA
Race3.25 Cup Outer Diam
Fitment notes — TIMKEN NP926068
Race3.25 Cup Outer Diam0.795 Cup Width
Rear Outer10.5 in Ring Gear
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TIMKEN Fits: 4.3L V6 HM903210
🇺🇸 US 🇨🇦 CA
Race
Fitment notes — TIMKEN HM903210
Race
Rear Inner10.5 in Ring Gear
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TIMKEN Fits: 4.3L V6 NP457992
🇺🇸 US 🇨🇦 CA
1.625 Cone Bore1.01 Cone Width
Fitment notes — TIMKEN NP457992
1.625 Cone Bore1.01 Cone Width
Rear Outer10.5 in Ring Gear
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TIMKEN Fits: 4.3L V6 HM903249
🇺🇸 US 🇨🇦 CA
Rear Inner10.5 in Ring Gear
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This table covers the bearings and races on the differential pinion.

Differential Pinion Bearing Baffle

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6 22943114
🇺🇸 US 🇨🇦 CA
37MM Inner Diameter and 16mm Thick3.42 Rear Axle Ratio (GU6),9.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6 26008741
🇺🇸 US 🇨🇦 CA
Fits Rear3 door
Fitment notes — GM GENUINE 26008741
Fits:
Rear3 door44.7MM I.D. X 22.7MM WIDE3.42 Rear Axle Ratio (GU6)
or:
RearCutaway Van44.7MM I.D. X 22.7MM WIDE3.73 Rear Axle Ratio (GT4),Positraction Limited-Slip Rear Axle (G80),DUAL REAR WHEELS(R05)
or:
RearCutaway Van44.7MM I.D. X 22.7MM WIDE3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)
or:
RearCutaway Van159.0" Wheelbase or 177.0" Wheelbase44.7MM I.D. X 22.7MM WIDE4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)
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This table covers the baffles that control oil at the pinion bearings.

Differential Pinion Bearing Bolt

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6 40018119
🇺🇸 US 🇨🇦 CA
with 10.5 (In) Rear Axle
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This table covers the Differential Pinion Bearing bolts.

Differential Pinion Nut

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6 15552844
🇺🇸 US 🇨🇦 CA
with 10.5 (In) Rear AxlePinion Gear Nut
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AAM Fits: 4.3L V6 155528441
🇺🇸 US 🇨🇦 CA
with 10.5 (In) Rear AxlePinion Gear Nut
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GM GENUINE Fits: 4.3L V6 84489150
🇺🇸 US 🇨🇦 CA
Fits 3 doorExc. Positraction Limited-Slip Rear Axle (G80)
Fitment notes — GM GENUINE 84489150
Fits:
3 doorExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6),9.50 Ring Gear Saginaw - American AxlePinion Gear Nutor Cutaway Van139.0" Wheelbase or 159.0" Wheelbase3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04),9.50 Ring Gear Saginaw - American AxlePinion Gear Nutor Standard Cargo Van or Standard Passenger Van3 door135.0" Wheelbase3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),9.50 Ring Gear Saginaw - American AxlePinion Gear Nutor Extended Cargo Van or Extended Passenger Van155.0" Wheelbase3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),9.50 Ring Gear Saginaw - American AxlePinion Gear Nut
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GM GENUINE Fits: 4.3L V6 15552844
🇺🇸 US 🇨🇦 CA
Fits Cutaway Van15/16X16
Fitment notes — GM GENUINE 15552844
Fits:
Cutaway Van15/16X163.73 Rear Axle Ratio (GT4),Dual Rear Wheels(R05)Pinion Gear Nutor Cutaway Van159.0" Wheelbase or 177.0" Wheelbase15/16X164.10 Rear Axle Ratio (GT5),Dual Rear Wheels(R05)Pinion Gear Nut
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This table covers the Differential Pinion nuts.

Differential Pinion Pilot Bearing

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6 7451870
🇺🇸 US 🇨🇦 CA
with 10.5 (In) Rear Axle
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GM GENUINE Fits: 4.3L V6 1581TS
🇺🇸 US 🇨🇦 CA
Fits Cutaway Van4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)
Fitment notes — GM GENUINE 1581TS
Fits:
Cutaway Van4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)
or:
Cutaway Van3.73 Rear Axle Ratio (GT4),DUAL REAR WHEELS(R05)
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This table covers the Differential Pinion Pilot bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Differential Pinion Repair Sleeve

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6 26060977
🇺🇸 US 🇨🇦 CA
Replacement sleevewith 10.5 (In) Rear Axle
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AAM Fits: 4.3L V6 26060975
🇺🇸 US 🇨🇦 CA
Sleeve To adapt standard yoke To Use late model triple Lip pinion sealwith 14 Bolt Cover
Fitment notes — AAM 26060975
Sleeve To adapt standard yoke To Use late model triple Lip pinion sealwith 14 Bolt Coverwith 9.5 (In) Rear Axle
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This table covers the wear sleeves used to restore a grooved pinion seal surface.

Differential Pinion Seal

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 4.3L V6 26064030
🇺🇸 US 🇨🇦 CA
Fits Cutaway VanOrder with 15552844 for 10.5 (Y10) or 12471484 for 11.5 (Y13)
Fitment notes — GM GENUINE 26064030
Fits:
Cutaway VanOrder with 15552844 for 10.5 (Y10) or 12471484 for 11.5 (Y13)3.73 Rear Axle Ratio (GT4),Dual Rear Wheels(R05)2 PC SealTriple-Lipor Cutaway VanOrder with 15552844 for 10.5 (Y10) or 12471484 for 11.5 (Y13)4.10 Rear Axle Ratio (GT5),Dual Rear Wheels(R05)2 PC SealTriple-Lip
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TIMKEN Popular Fits: 4.3L V6 710508
🇺🇸 US 🇨🇦 CA
Rear10.5" Ring Gear
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GM GENUINE Fits: 4.3L V6 86285709
🇺🇸 US 🇨🇦 CA
Fits Standard Cargo Van or Standard Passenger Van3 door
Fitment notes — GM GENUINE 86285709
Fits:
Standard Cargo Van or Standard Passenger Van3 door135.0" WheelbaseOrder with 844891503.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)
or:
3 doorExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
or:
Extended Cargo Van or Extended Passenger Van155.0" WheelbaseOrder with 844891503.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)
or:
Cutaway Van139.0" Wheelbase or 159.0" WheelbaseOrder with 844891503.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04)
or:
Standard Cargo Van or Standard Passenger Van3 door135.0" WheelbasePositraction Limited-Slip Rear Axle (G80),3.42 Rear Axle Ratio (GU6)Order with 84489150
or:
Extended Cargo Van or Extended Passenger Van155.0" WheelbasePositraction Limited-Slip Rear Axle (G80),3.42 Rear Axle Ratio (GU6)Order with 84489150
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MOTIVE GEAR Fits: 4.3L V6 26064030
🇺🇸 US 🇨🇦 CA
Rear10.5" Ring Gear
Fitment notes — MOTIVE GEAR 26064030
Rear10.5" Ring GearGM 11.5 Differential
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SCHAEFFLER Fits: 4.3L V6 SS3190
🇺🇸 US 🇨🇦 CA
RearViton Type
Fitment notes — SCHAEFFLER SS3190
RearViton Type15.011 mm Width59.03 mm Shaft Diameter
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SKF Fits: 4.3L V6 21395A
🇺🇸 US 🇨🇦 CA
Rearwith 9.75 Ring Gear
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This table covers the seals at the differential pinion yoke. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Differential Pinion Shaft Lock Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6 11546644
🇺🇸 US 🇨🇦 CA
3.42 Rear Axle Ratio (GU6)
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This table covers the Differential Pinion Shaft Lock bolts.

Differential Pinion Shim

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.3L V6 00334363
🇺🇸 US 🇨🇦 CA
Fits .007STAMPED 7
Fitment notes — GM GENUINE 00334363
Fits:
.007STAMPED 710.50 Ring Gear Saginaw - American Axl
or:
Cutaway Van.007STAMPED 73.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)10.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6 00334364
🇺🇸 US 🇨🇦 CA
Cutaway Van.008
Fitment notes — GM GENUINE 00334364
Cutaway Van.008STAMPED 83.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)10.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6 00334367
🇺🇸 US 🇨🇦 CA
Cutaway Van.011
Fitment notes — GM GENUINE 00334367
Cutaway Van.011STAMPED 113.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)10.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6 00334368
🇺🇸 US 🇨🇦 CA
Cutaway Van.012
Fitment notes — GM GENUINE 00334368
Cutaway Van.012STAMPED 123.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)10.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6 00334369
🇺🇸 US 🇨🇦 CA
Cutaway Van.013
Fitment notes — GM GENUINE 00334369
Cutaway Van.013STAMPED 133.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)10.50 Ring Gear Saginaw - American Axle
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This table covers the Differential Pinion shims.

Differential Rebuild Kit

Master Kit

Brand Part Number Markets Notes Buy
MOTIVE GEAR Popular Fits: 4.3L V6 R95GRLAMK
🇺🇸 US 🇨🇦 CA
Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Marking Compound, Pinion Nut, P
Fitment notes — MOTIVE GEAR R95GRLAMK
Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Marking Compound, Pinion Nut, P
RearGM 9.5" (12 Bolt)5.3L without MAX Trailering Package
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SKF Popular Fits: 4.3L V6 SDK325BMK
🇺🇸 US 🇨🇦 CA
Master Kit
Fitment notes — SKF SDK325BMK
Master Kit
Rearwith 10.50 Ring Gear
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BCA Fits: 4.3L V6 NBRA325BMK
🇺🇸 US 🇨🇦 CA
Master Kit
Fitment notes — BCA NBRA325BMK
Master Kit
Rearwith 10.5 IN Ring Gear
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BCA Fits: 4.3L V6 NBDRK324EMK
🇺🇸 US 🇨🇦 CA
Master Kit
Fitment notes — BCA NBDRK324EMK
Master Kit
Rearwith 9.5 IN Ring Gear
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BCA Fits: 4.3L V6 NBDRK327AMK
🇺🇸 US 🇨🇦 CA
Master Kit
Fitment notes — BCA NBDRK327AMK
Master Kit
Rearwith 11.5 IN Ring Gear
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LUK Fits: 4.3L V6 GDK325BMK
🇺🇸 US 🇨🇦 CA
Rear10.5 In
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MOTIVE GEAR Fits: 4.3L V6 R95GRLAMKT
🇺🇸 US 🇨🇦 CA
Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Marking Compound, Pinion Nut, P
Fitment notes — MOTIVE GEAR R95GRLAMKT
Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Marking Compound, Pinion Nut, P
RearGM 9.5" (12 Bolt)5.3L without MAX Trailering Package
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Standard Kit

Brand Part Number Markets Notes Buy
SKF Popular Fits: 4.3L V6 SDK325B
🇺🇸 US 🇨🇦 CA
Standard Kit
Fitment notes — SKF SDK325B
Standard Kit
Rearwith 10.50 Ring Gear
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AAM Fits: 4.3L V6 74067009
🇺🇸 US 🇨🇦 CA
with 10.5 (In) Rear Axle
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BCA Fits: 4.3L V6 NBRA325B
🇺🇸 US 🇨🇦 CA
Standard Kit
Fitment notes — BCA NBRA325B
Standard Kit
Rearwith 10.5 IN Ring Gear
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BCA Fits: 4.3L V6 NBDRK327A
🇺🇸 US 🇨🇦 CA
Standard Kit
Fitment notes — BCA NBDRK327A
Standard Kit
Rearwith 11.5 IN Ring Gear
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BCA Fits: 4.3L V6 NBDRK324E
🇺🇸 US 🇨🇦 CA
Standard Kit
Fitment notes — BCA NBDRK324E
Standard Kit
Rearwith 9.5 IN Ring Gear
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LUK Fits: 4.3L V6 GDK325B
🇺🇸 US 🇨🇦 CA
Standard Kit
Fitment notes — LUK GDK325B
Standard Kit
Rear10.5 In
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MOTIVE GEAR Fits: 4.3L V6 R95GRLA
🇺🇸 US 🇨🇦 CA
Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Marking Compound, Pinion Nut, P
Fitment notes — MOTIVE GEAR R95GRLA
Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Marking Compound, Pinion Nut, P
RearGM 9.5" (12 Bolt)5.3L without MAX Trailering Package
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MOTIVE GEAR Fits: 4.3L V6 R95GRLAT
🇺🇸 US 🇨🇦 CA
Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Marking Compound, Pinion Nut, P
Fitment notes — MOTIVE GEAR R95GRLAT
Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Marking Compound, Pinion Nut, P
RearGM 9.5" (12 Bolt)5.3L without MAX Trailering Package
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This table covers kits that group the bearings, races and seals for a differential rebuild.

Differential Ring and Pinion

Brand Part Number Markets Notes Buy
AAM Popular Fits: 4.3L V6 40070463
🇺🇸 US 🇨🇦 CA
Rearwith 4.1 Axle Ratio
Fitment notes — AAM 40070463
Rearwith 4.1 Axle Ratiowith 14 Bolt Coverwith 10.5 (In) Rear Axle
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MOTIVE GEAR Popular Fits: 4.3L V6 GM95L
🇺🇸 US 🇨🇦 CA
RearGM 9.5" (12 Bolt)
Fitment notes — MOTIVE GEAR GM95L
RearGM 9.5" (12 Bolt)5.3L without MAX Trailering Package
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AAM Fits: 4.3L V6 40058731
🇺🇸 US 🇨🇦 CA
Rearwith 3.73 Axle Ratio
Fitment notes — AAM 40058731
Rearwith 3.73 Axle Ratiowith 14 Bolt Coverwith 10.5 (In) Rear Axle
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AAM Fits: 4.3L V6 40173817
🇺🇸 US 🇨🇦 CA
with 3.42 Axle Ratiowith 14 Bolt Cover
Fitment notes — AAM 40173817
with 3.42 Axle Ratiowith 14 Bolt Coverwith 9.5 (In) Rear Axle
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AAM Fits: 4.3L V6 40033637
🇺🇸 US 🇨🇦 CA
with 14 Bolt Coverwith 9.5 (In) Rear Axle
Fitment notes — AAM 40033637
with 14 Bolt Coverwith 9.5 (In) Rear Axlewith 4.1 Rear Axle
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GM GENUINE Fits: 4.3L V6 19210931
🇺🇸 US 🇨🇦 CA
Cutaway Van159.0" Wheelbase or 177.0" Wheelbase
Fitment notes — GM GENUINE 19210931
Cutaway Van159.0" Wheelbase or 177.0" Wheelbase4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)
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GM GENUINE Fits: 4.3L V6 84489155
🇺🇸 US 🇨🇦 CA
Fits 3 doorExc. Positraction Limited-Slip Rear Axle (G80)
Fitment notes — GM GENUINE 84489155
Fits:
3 doorExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6),9.50 Ring Gear Saginaw - American Axl
or:
Standard Cargo Van or Standard Passenger Van3 door135.0" Wheelbase3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),9.50 Ring Gear Saginaw - American Axl
or:
Extended Cargo Van or Extended Passenger Van155.0" Wheelbase3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),9.50 Ring Gear Saginaw - American Axl
or:
Cutaway Van139.0" Wheelbase or 159.0" Wheelbase3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04),9.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6 19210704
🇺🇸 US 🇨🇦 CA
Cutaway Van3.73 Rear Axle Ratio (GT4),DUAL REAR WHEELS(R05)
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This table covers the ring-and-pinion gear sets that set the axle ratio.

Differential Ring Gear Bolt

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6 14012703
🇺🇸 US 🇨🇦 CA
Thread Diameter: 12 MM
Fitment notes — AAM 14012703
Thread Diameter: 12 MM
with 9.25 (In) Front Axle
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GM GENUINE Fits: 4.3L V6 11546991
🇺🇸 US 🇨🇦 CA
Fits Cutaway Van139.0" Wheelbase or 159.0" Wheelbase
Fitment notes — GM GENUINE 11546991
Fits:
Cutaway Van139.0" Wheelbase or 159.0" WheelbaseM12X1.5X22,20 Thread23 OD,12.93.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04)
or:
3 doorM12X1.5X22,20 ThreadExc. Positraction Limited-Slip Rear Axle (G80)23 OD,12.93.42 Rear Axle Ratio (GU6)
or:
135.0" Wheelbase or 155.0" WheelbaseM12X1.5X22,20 Thread23 OD,12.93.42 Rear Axle Ratio (GU6)
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GM GENUINE Fits: 4.3L V6 12479386
🇺🇸 US 🇨🇦 CA
Fits Cutaway Van4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)
Fitment notes — GM GENUINE 12479386
Fits:
Cutaway Van4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)
or:
Cutaway Van3.73 Rear Axle Ratio (GT4),DUAL REAR WHEELS(R05)
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This table covers the Differential Ring Gear bolts.

Differential Seal

Brand Part Number Markets Notes Buy
AAM Fits: 4.3L V6 26064030
🇺🇸 US 🇨🇦 CA
Use with 26060977 sleevewith 10.5 (In) Rear Axle
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This table covers the seals at the Differential. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Differential Spider Gear

Brand Part Number Markets Notes Buy
AAM Popular Fits: 4.3L V6 74040917
🇺🇸 US 🇨🇦 CA
Differential Spider and Pinion Gear Kit
Fitment notes — AAM 74040917
Differential Spider and Pinion Gear Kit
with 14 Bolt Coverwith 10.5 (In) Rear Axle
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GM GENUINE Fits: 4.3L V6 12479074
🇺🇸 US 🇨🇦 CA
Fits RearCutaway Van
Fitment notes — GM GENUINE 12479074
Fits:
RearCutaway VanInside Differential Assembly3.73 Rear Axle Ratio (GT4),Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)
or:
RearCutaway Van159.0" WheelbaseInside Differential Assembly4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)
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GM GENUINE Fits: 4.3L V6 12471687
🇺🇸 US 🇨🇦 CA
Carrier Gear KitIncludes Spider
Fitment notes — GM GENUINE 12471687
Carrier Gear KitIncludes Spider
Fits:
RearCutaway VanExc. Positraction Limited-Slip Rear Axle (G80)3.73 Rear Axle Ratio (GT4),DUAL REAR WHEELS(R05)
or:
RearCutaway Van159.0" Wheelbase or 177.0" WheelbaseExc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5),DUAL REAR WHEELS(R05)
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GM GENUINE Fits: 4.3L V6 12479065
🇺🇸 US 🇨🇦 CA
Carrier Gear Kit
Fitment notes — GM GENUINE 12479065
Carrier Gear Kit
Fits:
RearCutaway Van3.73 Rear Axle Ratio (GT4)Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05)10.50 Ring Gear Saginaw - American Axle
or:
RearCutaway Van159.0" Wheelbase or 177.0" Wheelbase4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80),DUAL REAR WHEELS(R05)10.50 Ring Gear Saginaw - American Axle
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GM GENUINE Fits: 4.3L V6 85106133
🇺🇸 US 🇨🇦 CA
Carrier Gear Kit
Fitment notes — GM GENUINE 85106133
Carrier Gear Kit
Fits:
3 doorwith SHAFT AND WASHERExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
or:
Cutaway Van139.0" Wheelbase or 159.0" Wheelbasewith SHAFT AND WASHERExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6),Active Brake Control (JL4),Single Rear Wheel (R04)
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This table covers the Differential Spider gears.

Buying Drivetrain Parts for a 2020 Chevrolet Express 3500

On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.

  • Match the engine first. Every drivetrain part here is engine-specific; each row shows which engine(s) it fits.
  • Read the notes on each row for position, trim and spec qualifiers before you order.
  • Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
  • Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Differential Rebuild Kit and Differential Pinion Bearing / Race .

Frequently Asked Questions

How many drivetrain parts fit the 2020 Chevrolet Express 3500?

Our catalog currently lists 149 drivetrain parts for the 2020 Chevrolet Express 3500 across 41 subcategories and 15 brands, covering all 3 engine options (2.8L L4 DIESEL Turbocharged, 4.3L V6 and 6.0L V8). Each part is matched to the engine(s) it fits.

Do drivetrain parts differ between 2020 Chevrolet Express 3500 engines?

Yes. Every drivetrain part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.

What are the signs of drivetrain problems on a 2020 Chevrolet Express 3500?

Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2020 Chevrolet Express 3500 was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2020 Chevrolet Express 3500?

First match the engine — each row shows which engine(s) the part fits. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2020 Chevrolet Express 3500

Drivetrain Parts for Other Chevrolet Express 3500 Years

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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.