This page lists 91 drivetrain parts for the 1973 Checker Marathon, across 11 part types, covering both the 4.1L 250cid L6 and the 5.7L 350cid V8. Every part shows its brand, manufacturer part number and fitment notes.
The drivetrain system on the 1973 Checker Marathon moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. The largest groups are Drive Shaft Center Support Bearing (23 parts), Differential Pinion Bearing / Race (21 parts) and Universal Joint (20 parts). The other 8 part types cover the remaining 27 parts.
The 1973 Checker Marathon was sold with both the 4.1L 250cid L6 and the 5.7L 350cid V8. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1973 Checker Marathon drivetrain parts are WJB / INMOTION PARTS (18 parts), BCA (11 parts) and TIMKEN (10 parts), plus 15 more brands. Quality grades include Standard Replacement, Economy and Heavy Duty.
18 parts on this 1973 Checker Marathon page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including TIMKEN 25523 (Differential Carrier Bearing / Race) and NATIONAL 02872 (Differential Pinion Bearing / Race). Click any part number to see every vehicle that part fits.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTIVE GEAR Fits: 4.1L 250cid L6 | 51098 | 🇺🇸 US 🇨🇦 CA | Rear Inner2.502" OD, 1.5" ID, .437" Wide | View on Amazon |
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.
This group shows a single part: MOTIVE GEAR 51098.
Differential Carrier Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | WT25523 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | WT25590 | 🇺🇸 US 🇨🇦 CA | Rearwith 8.5 IN Ring Gear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Popular Fits: 4.1L 250cid L6 | 25523 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| TIMKEN Popular Fits: 4.1L 250cid L6 | 25590 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| BCA Fits: 4.1L 250cid L6 | NB25523 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| BCA Fits: 4.1L 250cid L6 | NB25590 | 🇺🇸 US 🇨🇦 CA | Rearwith Spicer 44 Axle(S) | View on Amazon |
| NATIONAL Fits: 4.1L 250cid L6 | 25523 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SCHAEFFLER Fits: 4.1L 250cid L6 | 25523 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SCHAEFFLER Fits: 4.1L 250cid L6 | K25590 | 🇺🇸 US 🇨🇦 CA | Rear25.400 mm Width | View on Amazon |
| SKF Fits: 4.1L 250cid L6 | BR25523 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
This table covers the bearings and races that support the differential carrier.
10 Differential Carrier Bearing / Race parts for the 1973 Checker Marathon come from 6 brands — WJB / INMOTION PARTS, TIMKEN, BCA and 3 other brands. The "Popular" part is TIMKEN 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, TIMKEN, BCA, SCHAEFFLER and 2 other brands supply 8 parts: built to original-equipment specification. A representative part number is TIMKEN 25523.
Differential Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 4.1L 250cid L6 | RDS6629 | 🇺🇸 US 🇨🇦 CA | Rearwith Spicer 44 Axle(S) | View on Amazon |
| VICTOR REINZ Fits: 4.1L 250cid L6 | 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 1973 Checker Marathon come from 2 brands — FEL-PRO and VICTOR REINZ.
Listed part numbers: FEL-PRO RDS6629 and VICTOR REINZ 711481100.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | WT02820 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | WT31520 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | WT02872 | 🇺🇸 US 🇨🇦 CA | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | WT31594 | 🇺🇸 US 🇨🇦 CA | Rear Innerwith 8.5 IN Ring Gear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: 4.1L 250cid L6 | 02872 | 🇺🇸 US 🇨🇦 CA | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
| TIMKEN Popular Fits: 4.1L 250cid L6 | 02820 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| TIMKEN Popular Fits: 4.1L 250cid L6 | 31520 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| TIMKEN Popular Fits: 4.1L 250cid L6 | 02872 | 🇺🇸 US 🇨🇦 CA | Rear Outer | View on Amazon |
| TIMKEN Popular Fits: 4.1L 250cid L6 | 31594 | 🇺🇸 US 🇨🇦 CA | Rear Inner | View on Amazon |
| BCA Fits: 4.1L 250cid L6 | NB02820 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| BCA Fits: 4.1L 250cid L6 | NB31520 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| BCA Fits: 4.1L 250cid L6 | NB02872 | 🇺🇸 US 🇨🇦 CA | Rear Outerwith Spicer 44 Axle(S) | View on Amazon |
| BCA Fits: 4.1L 250cid L6 | NB31594 | 🇺🇸 US 🇨🇦 CA | Rear Innerwith Spicer 44 Axle(S) | View on Amazon |
| NATIONAL Fits: 4.1L 250cid L6 | 02820 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| NATIONAL Fits: 4.1L 250cid L6 | 31594 | 🇺🇸 US 🇨🇦 CA | Rear Innerwith 8.5 IN Ring Gear | View on Amazon |
| SCHAEFFLER Fits: 4.1L 250cid L6 | K2872 | 🇺🇸 US 🇨🇦 CA | Rear Outer22.225 mm Width | View on Amazon |
| SCHAEFFLER Fits: 4.1L 250cid L6 | 2820 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SCHAEFFLER Fits: 4.1L 250cid L6 | 31520 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SKF Fits: 4.1L 250cid L6 | BR02820 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SKF Fits: 4.1L 250cid L6 | BR31520 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SKF Fits: 4.1L 250cid L6 | BR31594 | 🇺🇸 US 🇨🇦 CA | with 1.3750 In. Bearing Inside Diameter | View on Amazon |
This table covers the bearings and races on the differential pinion.
21 Differential Pinion Bearing / Race parts are listed for the 1973 Checker Marathon, from WJB / INMOTION PARTS, TIMKEN, BCA and 3 other brands. NATIONAL 02872 carries the "Popular" badge.
Economy: 4 parts, from WJB / INMOTION PARTS. A representative part number is WJB / INMOTION PARTS WT02820.
The Standard Replacement section: 17 options from TIMKEN, BCA, NATIONAL and 2 other brands. NATIONAL 02872 is listed in this group.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 4.1L 250cid L6 | 99193 | 🇺🇸 US | Automatic trans.3 speed trans. | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | 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.
2 Differential Pinion Repair Sleeve parts for the 1973 Checker Marathon come from 2 brands — NATIONAL and WJB / INMOTION PARTS.
This group includes NATIONAL 99193 and WJB / INMOTION PARTS WS99155.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF Popular Fits: 4.1L 250cid L6 | 15788 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| WJB / INMOTION PARTS Popular Fits: 4.1L 250cid L6 | WS5778 | 🇺🇸 US 🇨🇦 CA | Nitrile | View on Amazon |
| BCA Fits: 4.1L 250cid L6 | NS5778 | 🇺🇸 US 🇨🇦 CA | Nitrile | View on Amazon |
| BCA Fits: 4.1L 250cid L6 | NS5778V | 🇺🇸 US 🇨🇦 CA | Viton | View on Amazon |
| SCHAEFFLER Fits: 4.1L 250cid L6 | SS2633 | 🇺🇸 US 🇨🇦 CA | Rear16.891 mm Width | View on Amazon |
| TIMKEN Fits: 4.1L 250cid L6 | 5778 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| TIMKEN Fits: 4.1L 250cid L6 | 6808N | 🇺🇸 US 🇨🇦 CA | Rear AxleAerobus | 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.
7 Differential Pinion Seal parts for the 1973 Checker Marathon come from 5 brands — BCA, TIMKEN, SKF and 2 other brands. The "Popular" part is SKF 15788.
Listed part numbers: SKF 15788, WJB / INMOTION PARTS WS5778 and BCA NS5778, plus the other parts above.
Differential Rebuild Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | WKRA28 | 🇺🇸 US 🇨🇦 CA | Rearwith 8.5 IN Ring Gear | View on Amazon |
This table covers kits that group the bearings, races and seals for a differential rebuild.
One part is listed for the 1973 Checker Marathon — WJB / INMOTION PARTS WKRA28.
Drive Shaft Center Support Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEA / MARMON RIDE CONTROL Popular Fits: 4.1L 250cid L6 | A6056 | 🇺🇸 US 🇨🇦 CA | MRC Driveline | View on Amazon |
| WESTAR Popular Fits: 4.1L 250cid L6 | DS6056 | 🇺🇸 US 🇨🇦 CA | Spicer 1260 thru 1410Bearings I.D. = 1.3780 | View on Amazon |
| WJB / INMOTION PARTS Popular Fits: 4.1L 250cid L6 | WCHB88107A | 🇺🇸 US 🇨🇦 CA | Includes Bearing and Support | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: 4.1L 250cid L6 | A6027 | 🇺🇸 US | MRC Driveline | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: 4.1L 250cid L6 | A60156 | 🇺🇸 US 🇨🇦 CA | MRC Driveline | View on Amazon |
| SKP Fits: 4.1L 250cid L6 | SKDS6027 | 🇺🇸 US 🇨🇦 CA | U-Shaped Housing | View on Amazon |
| SKP Fits: 4.1L 250cid L6 | SKDS6056 | 🇺🇸 US 🇨🇦 CA | Spicer 1260 Thru 1410Bearings I.D. = 1.3780 - 1.3775" | View on Amazon |
| WESTAR Fits: 4.1L 250cid L6 | DS6027 | 🇺🇸 US 🇨🇦 CA | Spicer 1260 Thru 1410Rubber Cushion Only | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | RB88107BVV | 🇺🇸 US 🇨🇦 CA | Slip Yoke Stylewith Spicer 1280,1310,1330,1410 U-Joint(S) | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | WCHB88107B | 🇺🇸 US 🇨🇦 CA | Includes Bearing and Support | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Popular Fits: 4.1L 250cid L6 | 6056 | 🇺🇸 US 🇨🇦 CA | Centerwith 35mm Inside Diameter Bearing(s) | View on Amazon |
| NATIONAL Popular Fits: 4.1L 250cid L6 | HB88107A | 🇺🇸 US 🇨🇦 CA | Includes Bearing and Support | View on Amazon |
| ACDELCO Fits: 4.1L 250cid L6 | HB88107A | 🇺🇸 US 🇨🇦 CA | GoldAssembly | View on Amazon |
| ANCHOR Fits: 4.1L 250cid L6 | 6027 | 🇺🇸 US 🇨🇦 CA | CenterCushion Only | View on Amazon |
| BCA Fits: 4.1L 250cid L6 | NBHB88107A | 🇺🇸 US 🇨🇦 CA | Includes Bearing and SupportSlingers Not Included | View on Amazon |
| BCA Fits: 4.1L 250cid L6 | NB88107BVV | 🇺🇸 US 🇨🇦 CA | Bearing Only | View on Amazon |
| BCA Fits: 4.1L 250cid L6 | NBHB88107B | 🇺🇸 US 🇨🇦 CA | Includes Bearing and Support or Bearing OnlyContains Slingers | View on Amazon |
| DANA Fits: 4.1L 250cid L6 | 25141750X | 🇺🇸 US 🇨🇦 CA | Spicer SelectContains Rubber Piece only | View on Amazon |
| NATIONAL Fits: 4.1L 250cid L6 | 88107BVV | 🇺🇸 US 🇨🇦 CA | Slip Yoke Stylewith 35mm Bearing Inside Diameter | View on Amazon |
| PIONEER Fits: 4.1L 250cid L6 | 646027 | 🇺🇸 US 🇨🇦 CA | CenterRubber Cushion Only | View on Amazon |
| PIONEER Fits: 4.1L 250cid L6 | 646056 | 🇺🇸 US 🇨🇦 CA | Centerwith Spicer:1280-1310-1410(Slip Yoke Style) 1.3780 | View on Amazon |
| TIMKEN Fits: 4.1L 250cid L6 | HB88107A | 🇺🇸 US 🇨🇦 CA | Bearing Assembly | View on Amazon |
| TIMKEN Fits: 4.1L 250cid L6 | 88107 | 🇺🇸 US 🇨🇦 CA | Bearing Only | 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.
23 Drive Shaft Center Support Bearing parts are listed for the 1973 Checker Marathon, from DEA / MARMON RIDE CONTROL, WJB / INMOTION PARTS, BCA and 8 other brands. DEA / MARMON RIDE CONTROL A6056 carries the "Popular" badge.
Economy: 10 parts, from DEA / MARMON RIDE CONTROL, WJB / INMOTION PARTS, WESTAR and 1 other brand. A representative part number is DEA / MARMON RIDE CONTROL A6056.
The Standard Replacement section: 13 options from BCA, ANCHOR, NATIONAL and 4 other brands. ANCHOR 6056 is listed in this group.
Universal Joint
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA Fits: 4.1L 250cid L6 | 15153X | 🇺🇸 US 🇨🇦 CA | SVLGreasable | View on Amazon |
| DANA Fits: 4.1L 250cid L6 | 25153X | 🇺🇸 US 🇨🇦 CA | Spicer SelectGreasable | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | UJT269 | 🇺🇸 US 🇨🇦 CA | Grade Type: Performance-Non-Greaseable | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | UJT369 | 🇺🇸 US 🇨🇦 CA | Grade Type: STD-Greaseable | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | UJT270 | 🇺🇸 US 🇨🇦 CA | Grade Type: Performance-Bearing Greaseable | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | UJT280 | 🇺🇸 US 🇨🇦 CA | Grade Type: Performance-Bearing Greaseable | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA Popular Fits: 4.1L 250cid L6 | 51310X | 🇺🇸 US 🇨🇦 CA | Spicer Life Series (SPL)Non-Greasable | View on Amazon |
| MOOG Popular Fits: 4.1L 250cid L6 | 269 | 🇺🇸 US 🇨🇦 CA | Super StrengthNon-Greasable | View on Amazon |
| MOOG Popular Fits: 4.1L 250cid L6 | 280 | 🇺🇸 US 🇨🇦 CA | Super StrengthGreasable | View on Amazon |
| ACDELCO Fits: 4.1L 250cid L6 | 45U0111 | 🇺🇸 US 🇨🇦 CA | Greasable Super StrengthIncludes Flush Type Lube Fitting | View on Amazon |
| DANA Fits: 4.1L 250cid L6 | 513101X | 🇺🇸 US 🇨🇦 CA | Spicer Life Series (SPL)Greasable | View on Amazon |
| GMB Fits: 4.1L 250cid L6 | 2150153 | 🇺🇸 US 🇨🇦 CA | PerformanceGreasable | View on Amazon |
| SKF Fits: 4.1L 250cid L6 | UJ269 | 🇺🇸 US 🇨🇦 CA | Greaseable or Brute Force Non Greaseable | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOOG Popular Fits: 4.1L 250cid L6 | 369 | 🇺🇸 US 🇨🇦 CA | Greasable | View on Amazon |
| ACDELCO Fits: 4.1L 250cid L6 | 45U0107 | 🇺🇸 US 🇨🇦 CA | GoldGreasable | View on Amazon |
| DANA Fits: 4.1L 250cid L6 | 5153X | 🇺🇸 US 🇨🇦 CA | SpicerGreasable | View on Amazon |
| GMB Fits: 4.1L 250cid L6 | 2100153 | 🇺🇸 US 🇨🇦 CA | GreasableGrease Fitting in Cross | View on Amazon |
| SKF Fits: 4.1L 250cid L6 | UJ369 | 🇺🇸 US 🇨🇦 CA | Greaseable | View on Amazon |
| SKF Fits: 4.1L 250cid L6 | UJ369C | 🇺🇸 US 🇨🇦 CA | Greaseable | View on Amazon |
| SKF Fits: 4.1L 250cid L6 | UJ280 | 🇺🇸 US 🇨🇦 CA | Greaseable | View on Amazon |
This table covers the U-joints in the driveshaft.
20 Universal Joint parts for the 1973 Checker Marathon come from 6 brands — DANA, WJB / INMOTION PARTS, SKF and 3 other brands. The "Popular" part is DANA 51310X.
The Economy section: 6 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: 4.1L 250cid L6 | UJT43710 | 🇺🇸 US 🇨🇦 CA | Rear Shaft All Joints1/4-28 Bolts | View on Amazon |
| WJB / INMOTION PARTS Fits: 4.1L 250cid L6 | 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 1973 Checker Marathon come from WJB / INMOTION PARTS.
This group includes WJB / INMOTION PARTS UJT43710 and WJB / INMOTION PARTS UJT36010.
Universal Joint U-Bolt Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTIVE GEAR Fits: 4.1L 250cid L6 | MGUB1310 | 🇺🇸 US 🇨🇦 CA | Competition Yoke U-BoltIncl. Longer Chromoly U-Bolts/Grade 8 Bolts | View on Amazon |
| MOTIVE GEAR Fits: 4.1L 250cid L6 | 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 1973 Checker Marathon.
Listed part numbers: MOTIVE GEAR MGUB1310 and MOTIVE GEAR MGUB1310XL.
Buying Drivetrain Parts for a 1973 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: Drive Shaft Center Support Bearing and Differential Pinion Bearing / Race .
Frequently Asked Questions
How many drivetrain parts fit the 1973 Checker Marathon?
Our catalog currently lists 91 drivetrain parts for the 1973 Checker Marathon across 11 subcategories and 18 brands, covering both the 4.1L 250cid L6 and the 5.7L 350cid V8. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 1973 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 1973 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 1973 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 1973 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 1973 Checker Marathon
Drivetrain Parts for Other Checker Marathon Years
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