74 Drivetrain parts are listed for the 1966 Checker Marathon, in 10 part types, covering all 4 engine options (3.8L 230cid L6, 4.6L 283cid V8, 5.2L 318cid V8 and 5.3L 327cid V8). Each one has a brand, a manufacturer part number and notes that say where it fits.
The drivetrain system on the 1966 Checker Marathon moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. The largest groups are Universal Joint (19 parts), Differential Pinion Bearing / Race (17 parts) and Drive Shaft Center Support Bearing (15 parts). The other 7 part types cover the remaining 23 parts.
The 1966 Checker Marathon was sold with 4 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1966 Checker Marathon drivetrain parts are WJB / INMOTION PARTS (16 parts), BCA (11 parts) and SKF (10 parts), plus 11 more brands. Quality grades include Standard Replacement, Economy and Heavy Duty.
14 parts on this 1966 Checker Marathon page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including NATIONAL 25523 (Differential Carrier Bearing / Race) and BCA NB02872 (Differential Pinion Bearing / Race). Click any part number to see every vehicle that part fits.
Differential Carrier Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | WT25523 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | WT25577 | 🇺🇸 US 🇨🇦 CA | Rearwith 8.5 IN Ring Gear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 25523 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| NATIONAL Popular Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 25577 | 🇺🇸 US 🇨🇦 CA | Rearwith 8.5 IN Ring Gear | View on Amazon |
| BCA Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | NB25523 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| BCA Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | NB25577 | 🇺🇸 US 🇨🇦 CA | Rearwith Spicer 44 Axle(S) | View on Amazon |
| SCHAEFFLER Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | K25590 | 🇺🇸 US 🇨🇦 CA | Rear25.400 mm Width | View on Amazon |
| SKF Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | BR25523 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
This table covers the bearings and races that support the differential carrier.
8 Differential Carrier Bearing / Race parts for the 1966 Checker Marathon come from 5 brands — WJB / INMOTION PARTS, NATIONAL, BCA and 2 other brands. The "Popular" part is NATIONAL 25523.
The Economy section lists 2 options from WJB / INMOTION PARTS — the catalog's value-priced group. WJB / INMOTION PARTS WT25523 is listed in this group.
In the Standard Replacement grade, NATIONAL, BCA, SCHAEFFLER and 1 other brand supply 6 parts: built to original-equipment specification. A representative part number is NATIONAL 25523.
This group includes NATIONAL 25523, WJB / INMOTION PARTS WT25523 and WJB / INMOTION PARTS WT25577 and the remaining parts above.
Differential Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | RDS6629 | 🇺🇸 US 🇨🇦 CA | Rearwith Spicer 44 Axle(S) | View on Amazon |
| VICTOR REINZ Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 711481100 | 🇺🇸 US 🇨🇦 CA | Rearwith Dana 44 Axle(S) | View on Amazon |
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.
2 Differential Cover Gasket parts for the 1966 Checker Marathon come from 2 brands — FEL-PRO and VICTOR REINZ.
This group includes FEL-PRO RDS6629 and VICTOR REINZ 711481100.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | WT02820 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | WT31520 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | WT02872 | 🇺🇸 US 🇨🇦 CA | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | WT31594 | 🇺🇸 US 🇨🇦 CA | Rear Innerwith 8.5 IN Ring Gear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Popular Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | NB02872 | 🇺🇸 US 🇨🇦 CA | Rear Outerwith Spicer 44 Axle(S) | View on Amazon |
| NATIONAL Popular Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 02820 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| NATIONAL Popular Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 02872 | 🇺🇸 US 🇨🇦 CA | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
| NATIONAL Popular Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 31594 | 🇺🇸 US 🇨🇦 CA | Rear Innerwith 8.5 IN Ring Gear | View on Amazon |
| BCA Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | NB02820 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| BCA Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | NB31520 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| BCA Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | NB31594 | 🇺🇸 US 🇨🇦 CA | Rear Innerwith Spicer 44 Axle(S) | View on Amazon |
| SCHAEFFLER Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | K2872 | 🇺🇸 US 🇨🇦 CA | Rear Outer22.225 mm Width | View on Amazon |
| SCHAEFFLER Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 2820 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SCHAEFFLER Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 31520 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SKF Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | BR02820 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SKF Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | BR31520 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SKF Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | BR31594 | 🇺🇸 US 🇨🇦 CA | with 1.3750 In. Bearing Inside Diameter | View on Amazon |
This table covers the bearings and races on the differential pinion.
17 Differential Pinion Bearing / Race parts are listed for the 1966 Checker Marathon, from WJB / INMOTION PARTS, BCA, NATIONAL and 2 other brands. BCA NB02872 carries the "Popular" badge.
Economy: 4 parts, from WJB / INMOTION PARTS. A representative part number is WJB / INMOTION PARTS WT02820.
The Standard Replacement section: 13 options from BCA, NATIONAL, SCHAEFFLER and 1 other brand. BCA NB02872 is listed in this group.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 99193 | 🇺🇸 US | Automatic trans.3 speed trans. | View on Amazon |
| SCHAEFFLER Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | SR3481 | 🇺🇸 US 🇨🇦 CA | Rear14.3 mm Width | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | WS99155 | 🇺🇸 US 🇨🇦 CA | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
This table covers the wear sleeves used to restore a grooved pinion seal surface.
3 Differential Pinion Repair Sleeve parts for the 1966 Checker Marathon come from 3 brands — NATIONAL, SCHAEFFLER and WJB / INMOTION PARTS.
This group includes NATIONAL 99193, SCHAEFFLER SR3481 and WJB / INMOTION PARTS WS99155.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF Popular Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 15788 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| BCA Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | NS5778 | 🇺🇸 US 🇨🇦 CA | Nitrile | View on Amazon |
| BCA Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | NS5778V | 🇺🇸 US 🇨🇦 CA | Viton | View on Amazon |
| SCHAEFFLER Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | SS2633 | 🇺🇸 US 🇨🇦 CA | Rear16.891 mm Width | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | WS5778 | 🇺🇸 US 🇨🇦 CA | Nitrile | View on Amazon |
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.
5 Differential Pinion Seal parts for the 1966 Checker Marathon come from 4 brands — BCA, SKF, SCHAEFFLER and 1 other brand. The "Popular" part is SKF 15788.
Part numbers include SKF 15788, BCA NS5778 and BCA NS5778V, among others listed above.
Drive Shaft Center Support Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEA / MARMON RIDE CONTROL Popular Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | A6056 | 🇺🇸 US | MRC Driveline | View on Amazon |
| WJB / INMOTION PARTS Popular Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | WCHB88107A | 🇺🇸 US 🇨🇦 CA | Includes Bearing and Support | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | A6027 | 🇺🇸 US | MRC Driveline | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | A60156 | 🇺🇸 US | MRC Driveline | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | RB88107BVV | 🇺🇸 US 🇨🇦 CA | Slip Yoke Stylewith Spicer 1280,1310,1330,1410 U-Joint(S) | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | WCHB88107B | 🇺🇸 US 🇨🇦 CA | Includes Bearing and Support | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Popular Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 6056 | 🇺🇸 US 🇨🇦 CA | Centerwith 35mm Inside Diameter Bearing(s) | View on Amazon |
| ACDELCO Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | HB88107A | 🇺🇸 US 🇨🇦 CA | GoldAssembly | View on Amazon |
| ANCHOR Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 6027 | 🇺🇸 US 🇨🇦 CA | CenterCushion Only | View on Amazon |
| BCA Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | NBHB88107A | 🇺🇸 US 🇨🇦 CA | Includes Bearing and SupportSlingers Not Included | View on Amazon |
| BCA Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | NB88107BVV | 🇺🇸 US 🇨🇦 CA | Bearing Only | View on Amazon |
| BCA Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | NBHB88107B | 🇺🇸 US 🇨🇦 CA | Includes Bearing and Support or Bearing OnlyContains Slingers | View on Amazon |
| DANA Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 25141750X | 🇺🇸 US 🇨🇦 CA | Spicer SelectContains Rubber Piece only | View on Amazon |
| NATIONAL Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | HB88107A | 🇺🇸 US 🇨🇦 CA | Includes Bearing and Support | View on Amazon |
| NATIONAL Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | 88107BVV | 🇺🇸 US 🇨🇦 CA | Slip Yoke Stylewith 35mm Bearing Inside Diameter | View on Amazon |
This table covers the Drive Shaft Center Support 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.
15 Drive Shaft Center Support Bearing parts are listed for the 1966 Checker Marathon, from DEA / MARMON RIDE CONTROL, WJB / INMOTION PARTS, BCA and 4 other brands. DEA / MARMON RIDE CONTROL A6056 carries the "Popular" badge.
Economy: 6 parts, from DEA / MARMON RIDE CONTROL and WJB / INMOTION PARTS. A representative part number is DEA / MARMON RIDE CONTROL A6056.
The Standard Replacement section: 9 options from BCA, ANCHOR, NATIONAL and 2 other brands. ANCHOR 6056 is listed in this group.
Transfer Case Main Shaft Pilot Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF Fits: 3.8L 230cid L6, 4.6L 283cid V8, 5.3L 327cid V8 | C407Q | 🇺🇸 US 🇨🇦 CA | Includes 52 Needle Bearings | View on Amazon |
This table covers the Transfer Case Main Shaft 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.
One part is listed for the 1966 Checker Marathon — SKF C407Q.
Universal Joint
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 15153X | 🇺🇸 US 🇨🇦 CA | SVLGreasable | View on Amazon |
| DANA Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 25153X | 🇺🇸 US 🇨🇦 CA | Spicer SelectGreasable | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.6L 283cid V8, 5.3L 327cid V8 | UJT269 | 🇺🇸 US 🇨🇦 CA | Grade Type: Performance-Non-Greaseable | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.6L 283cid V8, 5.3L 327cid V8 | UJT369 | 🇺🇸 US 🇨🇦 CA | Grade Type: STD-Greaseable | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.6L 283cid V8, 5.3L 327cid V8 | UJT280 | 🇺🇸 US 🇨🇦 CA | Grade Type: Performance-Bearing Greaseable | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA Popular Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 51310X | 🇺🇸 US 🇨🇦 CA | Spicer Life Series (SPL)Non-Greasable | View on Amazon |
| MOOG Popular Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 269 | 🇺🇸 US 🇨🇦 CA | Super StrengthNon-Greasable | View on Amazon |
| MOOG Popular Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 280 | 🇺🇸 US 🇨🇦 CA | Super StrengthGreasable | View on Amazon |
| ACDELCO Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 45U0111 | 🇺🇸 US 🇨🇦 CA | Greasable Super StrengthIncludes Flush Type Lube Fitting | View on Amazon |
| DANA Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 513101X | 🇺🇸 US 🇨🇦 CA | Spicer Life Series (SPL)Greasable | View on Amazon |
| GMB Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 2150153 | 🇺🇸 US 🇨🇦 CA | PerformanceGreasable | View on Amazon |
| SKF Fits: 4.6L 283cid V8, 5.3L 327cid V8 | UJ269 | 🇺🇸 US 🇨🇦 CA | Greaseable or Brute Force Non Greaseable | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOOG Popular Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 369 | 🇺🇸 US 🇨🇦 CA | Greasable | View on Amazon |
| ACDELCO Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 45U0107 | 🇺🇸 US 🇨🇦 CA | GoldGreasable | View on Amazon |
| DANA Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 5153X | 🇺🇸 US 🇨🇦 CA | SpicerGreasable | View on Amazon |
| GMB Fits: 4.6L 283cid V8, 5.3L 327cid V8 | 2100153 | 🇺🇸 US 🇨🇦 CA | GreasableGrease Fitting in Cross | View on Amazon |
| SKF Fits: 4.6L 283cid V8, 5.3L 327cid V8 | UJ369 | 🇺🇸 US 🇨🇦 CA | Greaseable | View on Amazon |
| SKF Fits: 4.6L 283cid V8, 5.3L 327cid V8 | UJ369C | 🇺🇸 US 🇨🇦 CA | Greaseable | View on Amazon |
| SKF Fits: 4.6L 283cid V8, 5.3L 327cid V8 | UJ280 | 🇺🇸 US 🇨🇦 CA | Greaseable | View on Amazon |
This table covers the U-joints in the driveshaft.
19 Universal Joint parts for the 1966 Checker Marathon come from 6 brands — DANA, SKF, WJB / INMOTION PARTS and 3 other brands. The "Popular" part is DANA 51310X.
The Economy section: 5 options from WJB / INMOTION PARTS and DANA. DANA 15153X is listed in this group.
In the Heavy Duty grade, DANA, MOOG, ACDELCO and 2 other brands supply 7 parts: rated for severe service. A representative part number is DANA 51310X.
Standard Replacement: 7 parts, from SKF, MOOG, ACDELCO and 2 other brands. A representative part number is MOOG 369.
Universal Joint Strap Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: 4.6L 283cid V8, 5.3L 327cid V8 | UJT43710 | 🇺🇸 US 🇨🇦 CA | Rear Shaft All Joints1/4-28 Bolts | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.6L 283cid V8, 5.3L 327cid V8 | UJT36010 | 🇺🇸 US 🇨🇦 CA | Rear Shaft All Joints5/16-24 Bolts | View on Amazon |
This table covers the Universal Joint Strap kits.
2 Universal Joint Strap Kit parts for the 1966 Checker Marathon come from WJB / INMOTION PARTS.
Listed part numbers: WJB / INMOTION PARTS UJT43710 and WJB / INMOTION PARTS UJT36010.
Universal Joint U-Bolt Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTIVE GEAR Fits: 5.3L 327cid V8 | MGUB1310 | 🇺🇸 US 🇨🇦 CA | Competition Yoke U-BoltIncl. Longer Chromoly U-Bolts/Grade 8 Bolts | View on Amazon |
| MOTIVE GEAR Fits: 5.3L 327cid V8 | MGUB1310XL | 🇺🇸 US 🇨🇦 CA | 1310 U-Bolt KitExtra Long Bolt | View on Amazon |
This table covers the Universal Joint U-Bolt kits.
MOTIVE GEAR supplies both parts for the 1966 Checker Marathon.
Part numbers include MOTIVE GEAR MGUB1310 and MOTIVE GEAR MGUB1310XL.
Buying Drivetrain Parts for a 1966 Checker Marathon
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: Universal Joint and Differential Pinion Bearing / Race .
Frequently Asked Questions
How many drivetrain parts fit the 1966 Checker Marathon?
Our catalog currently lists 74 drivetrain parts for the 1966 Checker Marathon across 10 subcategories and 14 brands, covering all 4 engine options (3.8L 230cid L6, 4.6L 283cid V8, 5.2L 318cid V8 and 5.3L 327cid V8). Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 1966 Checker Marathon 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 1966 Checker Marathon?
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 1966 Checker Marathon 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 1966 Checker Marathon?
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 1966 Checker Marathon
Drivetrain Parts for Other Checker Marathon Years
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