This page lists 55 drivetrain parts for the 1961 Checker Marathon, across 7 part types, covering both the 3.7L 226cid L6 and the 5.2L 318cid V8. Every part shows its brand, manufacturer part number and fitment notes.
On the 1961 Checker Marathon, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 40 parts of the 55 listed are Differential Pinion Bearing / Race (17 parts), Drive Shaft Center Support Bearing (15 parts) and Differential Carrier Bearing / Race (8 parts). The other 4 part types cover the remaining 15 parts.
The 1961 Checker Marathon was sold with both the 3.7L 226cid L6 and the 5.2L 318cid V8. All 55 parts on this page fit every engine.
11 brands supply drivetrain parts for the 1961 Checker Marathon, led by WJB / INMOTION PARTS (11 parts), BCA (11 parts) and NATIONAL (8 parts), plus 8 more brands. Quality grades include Standard Replacement, Economy and Heavy Duty.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1961 Checker Marathon. 11 parts have it, including NATIONAL 25523 (Differential Carrier Bearing / Race) and BCA NB02872 (Differential Pinion Bearing / Race). Each part number opens a page with every vehicle that part fits.
Differential Carrier Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: all 1961 Marathon engines | WT25523 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1961 Marathon engines | WT25577 | 🇺🇸 US | Rearwith 8.5 IN Ring Gear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: all 1961 Marathon engines | 25523 | 🇺🇸 US | Race | View on Amazon |
| NATIONAL Popular Fits: all 1961 Marathon engines | 25577 | 🇺🇸 US | Rearwith 8.5 IN Ring Gear | View on Amazon |
| BCA Fits: all 1961 Marathon engines | NB25523 | 🇺🇸 US | Race | View on Amazon |
| BCA Fits: all 1961 Marathon engines | NB25577 | 🇺🇸 US | Rearwith Spicer 44 Axle(S) | View on Amazon |
| SCHAEFFLER Fits: all 1961 Marathon engines | K25590 | 🇺🇸 US | Rear25.400 mm Width | View on Amazon |
| SKF Fits: all 1961 Marathon engines | BR25523 | 🇺🇸 US | Race | View on Amazon |
This table covers the bearings and races that support the differential carrier.
8 Differential Carrier Bearing / Race parts are listed for the 1961 Checker Marathon, from WJB / INMOTION PARTS, NATIONAL, BCA and 2 other brands. NATIONAL 25523 carries the "Popular" badge. All of them fit every engine offered in the 1961 Marathon.
In the Economy grade, WJB / INMOTION PARTS supplies 2 parts: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS WT25523.
The Standard Replacement section lists 6 options from NATIONAL, BCA, SCHAEFFLER and 1 other brand — built to original-equipment specification. NATIONAL 25523 is listed in this group.
Listed part numbers: NATIONAL 25523, WJB / INMOTION PARTS WT25523 and WJB / INMOTION PARTS WT25577, plus the other parts above.
Differential Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: all 1961 Marathon engines | RDS6629 | 🇺🇸 US | Rearwith Spicer 44 Axle(S) | View on Amazon |
| VICTOR REINZ Fits: all 1961 Marathon engines | 711481100 | 🇺🇸 US | 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 are listed for the 1961 Checker Marathon, from FEL-PRO and VICTOR REINZ. All of them fit every engine offered in the 1961 Marathon.
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: all 1961 Marathon engines | WT02820 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1961 Marathon engines | WT31520 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1961 Marathon engines | WT02872 | 🇺🇸 US | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1961 Marathon engines | WT31594 | 🇺🇸 US | Rear Innerwith 8.5 IN Ring Gear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Popular Fits: all 1961 Marathon engines | NB02872 | 🇺🇸 US | Rear Outerwith Spicer 44 Axle(S) | View on Amazon |
| NATIONAL Popular Fits: all 1961 Marathon engines | 02820 | 🇺🇸 US | Race | View on Amazon |
| NATIONAL Popular Fits: all 1961 Marathon engines | 02872 | 🇺🇸 US | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
| NATIONAL Popular Fits: all 1961 Marathon engines | 31594 | 🇺🇸 US | Rear Innerwith 8.5 IN Ring Gear | View on Amazon |
| BCA Fits: all 1961 Marathon engines | NB02820 | 🇺🇸 US | Race | View on Amazon |
| BCA Fits: all 1961 Marathon engines | NB31520 | 🇺🇸 US | Race | View on Amazon |
| BCA Fits: all 1961 Marathon engines | NB31594 | 🇺🇸 US | Rear Innerwith Spicer 44 Axle(S) | View on Amazon |
| SCHAEFFLER Fits: all 1961 Marathon engines | K2872 | 🇺🇸 US | Rear Outer22.225 mm Width | View on Amazon |
| SCHAEFFLER Fits: all 1961 Marathon engines | 2820 | 🇺🇸 US | Race | View on Amazon |
| SCHAEFFLER Fits: all 1961 Marathon engines | 31520 | 🇺🇸 US | Race | View on Amazon |
| SKF Fits: all 1961 Marathon engines | BR02820 | 🇺🇸 US | Race | View on Amazon |
| SKF Fits: all 1961 Marathon engines | BR31520 | 🇺🇸 US | Race | View on Amazon |
| SKF Fits: all 1961 Marathon engines | BR31594 | 🇺🇸 US | 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 for the 1961 Checker Marathon come from 5 brands — WJB / INMOTION PARTS, BCA, NATIONAL and 2 other brands. The "Popular" part is BCA NB02872. Every part fits both the 3.7L 226cid L6 and the 5.2L 318cid V8.
The Economy section: 4 options from WJB / INMOTION PARTS. WJB / INMOTION PARTS WT02820 is listed in this group.
Standard Replacement: 13 parts, from BCA, NATIONAL, SCHAEFFLER and 1 other brand. A representative part number is BCA NB02872.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: all 1961 Marathon engines | 99193 | 🇺🇸 US | with 3-Speed Borg Warner T12 Transmission | View on Amazon |
| SCHAEFFLER Fits: all 1961 Marathon engines | SR3481 | 🇺🇸 US | Rear14.3 mm Width | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1961 Marathon engines | WS99155 | 🇺🇸 US | 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 are listed for the 1961 Checker Marathon, from NATIONAL, SCHAEFFLER and WJB / INMOTION PARTS. All of them fit every engine offered in the 1961 Marathon.
Part numbers include NATIONAL 99193, SCHAEFFLER SR3481 and WJB / INMOTION PARTS WS99155.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF Popular Fits: all 1961 Marathon engines | 15788 | 🇺🇸 US | Rear | View on Amazon |
| BCA Fits: all 1961 Marathon engines | NS5778 | 🇺🇸 US | Nitrile | View on Amazon |
| BCA Fits: all 1961 Marathon engines | NS5778V | 🇺🇸 US | Viton | View on Amazon |
| SCHAEFFLER Fits: all 1961 Marathon engines | SS2633 | 🇺🇸 US | Rear16.891 mm Width | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1961 Marathon engines | WS5778 | 🇺🇸 US | 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 are listed for the 1961 Checker Marathon, from BCA, SKF, SCHAEFFLER and 1 other brand. SKF 15788 carries the "Popular" badge. All of them fit every engine offered in the 1961 Marathon.
Listed part numbers: SKF 15788, BCA NS5778 and BCA NS5778V, plus the other parts above.
Drive Shaft Center Support Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEA / MARMON RIDE CONTROL Popular Fits: all 1961 Marathon engines | A6056 | 🇺🇸 US | MRC Driveline | View on Amazon |
| WJB / INMOTION PARTS Popular Fits: all 1961 Marathon engines | WCHB88107A | 🇺🇸 US | Includes Bearing and Support | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: all 1961 Marathon engines | A6027 | 🇺🇸 US | MRC Driveline | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: all 1961 Marathon engines | A60156 | 🇺🇸 US | MRC Driveline | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1961 Marathon engines | RB88107BVV | 🇺🇸 US | Slip Yoke Stylewith Spicer 1280,1310,1330,1410 U-Joint(S) | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1961 Marathon engines | WCHB88107B | 🇺🇸 US | Includes Bearing and Support | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Popular Fits: all 1961 Marathon engines | 6056 | 🇺🇸 US | Centerwith 35mm Inside Diameter Bearing(s) | View on Amazon |
| ACDELCO Fits: all 1961 Marathon engines | HB88107A | 🇺🇸 US 🇨🇦 CA | GoldAssembly | View on Amazon |
| ANCHOR Fits: all 1961 Marathon engines | 6027 | 🇺🇸 US | CenterCushion Only | View on Amazon |
| BCA Fits: all 1961 Marathon engines | NBHB88107A | 🇺🇸 US | Includes Bearing and SupportSlingers Not Included | View on Amazon |
| BCA Fits: all 1961 Marathon engines | NB88107BVV | 🇺🇸 US | Bearing Only | View on Amazon |
| BCA Fits: all 1961 Marathon engines | NBHB88107B | 🇺🇸 US | Includes Bearing and Support or Bearing OnlyContains Slingers | View on Amazon |
| DANA Fits: all 1961 Marathon engines | 25141750X | 🇺🇸 US | Spicer SelectContains Rubber Piece only | View on Amazon |
| NATIONAL Fits: all 1961 Marathon engines | HB88107A | 🇺🇸 US | Includes Bearing and Support | View on Amazon |
| NATIONAL Fits: all 1961 Marathon engines | 88107BVV | 🇺🇸 US | 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 for the 1961 Checker Marathon come from 7 brands — DEA / MARMON RIDE CONTROL, WJB / INMOTION PARTS, BCA and 4 other brands. The "Popular" part is DEA / MARMON RIDE CONTROL A6056. Every part fits both the 3.7L 226cid L6 and the 5.2L 318cid V8.
The Economy section: 6 options from DEA / MARMON RIDE CONTROL and WJB / INMOTION PARTS. DEA / MARMON RIDE CONTROL A6056 is listed in this group.
Standard Replacement: 9 parts, from BCA, ANCHOR, NATIONAL and 2 other brands. A representative part number is ANCHOR 6056.
Universal Joint
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA Fits: all 1961 Marathon engines | 15153X | 🇺🇸 US | SVLGreasable | View on Amazon |
| DANA Fits: all 1961 Marathon engines | 25153X | 🇺🇸 US | Spicer SelectGreasable | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA Popular Fits: all 1961 Marathon engines | 51310X | 🇺🇸 US | Spicer Life Series (SPL)Non-Greasable | View on Amazon |
| DANA Fits: all 1961 Marathon engines | 513101X | 🇺🇸 US | Spicer Life Series (SPL)Greasable | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA Fits: all 1961 Marathon engines | 5153X | 🇺🇸 US | SpicerGreasable | View on Amazon |
This table covers the U-joints in the driveshaft.
DANA supplies the 5 Universal Joint parts for the 1961 Checker Marathon. DANA 51310X carries the "Popular" badge. All of them fit every engine offered in the 1961 Marathon.
Economy: 2 parts, from DANA. A representative part number is DANA 15153X.
The Heavy Duty section lists 2 options from DANA — rated for severe service. DANA 51310X is listed in this group.
The Standard Replacement section: 1 option from DANA. DANA 5153X is listed in this group.
This group includes DANA 51310X, DANA 15153X and DANA 25153X and the remaining parts above.
Buying Drivetrain Parts for a 1961 Checker Marathon
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- You do not need to pick an engine: every drivetrain part on this page fits both the 3.7L 226cid L6 and the 5.2L 318cid V8.
- 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 Pinion Bearing / Race and Drive Shaft Center Support Bearing .
Frequently Asked Questions
How many drivetrain parts fit the 1961 Checker Marathon?
Our catalog currently lists 55 drivetrain parts for the 1961 Checker Marathon across 7 subcategories and 11 brands, covering both the 3.7L 226cid L6 and the 5.2L 318cid V8. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 1961 Checker Marathon engines?
No. On this page every drivetrain part fits both the 3.7L 226cid L6 and the 5.2L 318cid V8. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of drivetrain problems on a 1961 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 1961 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 1961 Checker Marathon?
Every part on this page already fits both the 3.7L 226cid L6 and the 5.2L 318cid V8. 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 1961 Checker Marathon
Drivetrain Parts for Other Checker Marathon Years
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