This page lists 35 drivetrain parts for the 1950 Hudson Super Series, across 6 part types, covering both the 4.2L 254cid L8 and the 4.3L 262cid L6. Every part shows its brand, manufacturer part number and fitment notes.
On the 1950 Hudson Super Series, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 28 parts of the 35 listed are Differential Pinion Bearing / Race (13 parts), Differential Carrier Bearing / Race (10 parts) and Differential Pinion Seal (5 parts). The other 3 part types cover the remaining 7 parts.
The 1950 Hudson Super Series was sold with both the 4.2L 254cid L8 and the 4.3L 262cid L6. All 35 parts on this page fit every engine.
8 brands supply drivetrain parts for the 1950 Hudson Super Series, led by BCA (12 parts), WJB / INMOTION PARTS (11 parts) and NATIONAL (6 parts), plus 5 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1950 Hudson Super Series. 6 parts have it, including NATIONAL 25523 (Differential Carrier Bearing / Race) and NATIONAL 02820 (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 1950 Super Series engines | WT25523 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1950 Super Series engines | WT25580 | 🇺🇸 US | Rearwith 8.5 IN Ring Gear | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1950 Super Series engines | WT25577 | 🇺🇸 US | Rearwith 8.5 IN Ring Gear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: all 1950 Super Series engines | 25523 | 🇺🇸 US | Race | View on Amazon |
| NATIONAL Popular Fits: all 1950 Super Series engines | 25580 | 🇺🇸 US | Rearwith 8.5 IN Ring Gear | View on Amazon |
| ACDELCO Fits: all 1950 Super Series engines | 25580 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| BCA Fits: all 1950 Super Series engines | NB25523 | 🇺🇸 US | Race | View on Amazon |
| BCA Fits: all 1950 Super Series engines | NB25580 | 🇺🇸 US | Rearwith Spicer 41 Axle(s) | View on Amazon |
| BCA Fits: all 1950 Super Series engines | NB25577 | 🇺🇸 US | Rearwith Spicer 44 Axle(S) | View on Amazon |
| NATIONAL Fits: all 1950 Super Series engines | 25577 | 🇺🇸 US | Rearwith 8.5 IN Ring Gear | View on Amazon |
This table covers the bearings and races that support the differential carrier.
10 Differential Carrier Bearing / Race parts are listed for the 1950 Hudson Super Series, from WJB / INMOTION PARTS, NATIONAL, BCA and 1 other brand. NATIONAL 25523 carries the "Popular" badge. All of them fit every engine offered in the 1950 Super Series.
In the Economy grade, WJB / INMOTION PARTS supplies 3 parts: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS WT25523.
The Standard Replacement section lists 7 options from NATIONAL, BCA and ACDELCO — built to original-equipment specification. NATIONAL 25523 is listed in this group.
Differential Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: all 1950 Super Series engines | RDS6629 | 🇺🇸 US | Rearwith Spicer 44 Axle(S) | View on Amazon |
| VICTOR REINZ Fits: all 1950 Super Series 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 1950 Hudson Super Series, from FEL-PRO and VICTOR REINZ. All of them fit every engine offered in the 1950 Super Series.
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 1950 Super Series engines | WT02820 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1950 Super Series engines | WT31520 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1950 Super Series engines | WT02872 | 🇺🇸 US | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1950 Super Series engines | WT31594 | 🇺🇸 US | Rear Innerwith 8.5 IN Ring Gear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: all 1950 Super Series engines | 02820 | 🇺🇸 US | Race | View on Amazon |
| NATIONAL Popular Fits: all 1950 Super Series engines | 02872 | 🇺🇸 US | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
| NATIONAL Popular Fits: all 1950 Super Series engines | 31594 | 🇺🇸 US | Rear Innerwith 8.5 IN Ring Gear | View on Amazon |
| BCA Fits: all 1950 Super Series engines | NB02820 | 🇺🇸 US | Race | View on Amazon |
| BCA Fits: all 1950 Super Series engines | NB31520 | 🇺🇸 US | Race | View on Amazon |
| BCA Fits: all 1950 Super Series engines | NB3820 | 🇺🇸 US | Race | View on Amazon |
| BCA Fits: all 1950 Super Series engines | NB02872 | 🇺🇸 US | Rear Outerwith Spicer 44 Axle(S) | View on Amazon |
| BCA Fits: all 1950 Super Series engines | NB31594 | 🇺🇸 US | Rear Innerwith Spicer 44 Axle(S) | View on Amazon |
| BCA Fits: all 1950 Super Series engines | NB3877 | 🇺🇸 US | Rear Innerwith Spicer 41 Axle(s) | View on Amazon |
This table covers the bearings and races on the differential pinion.
13 Differential Pinion Bearing / Race parts for the 1950 Hudson Super Series come from 3 brands — BCA, WJB / INMOTION PARTS and NATIONAL. The "Popular" part is NATIONAL 02820. Every part fits both the 4.2L 254cid L8 and the 4.3L 262cid L6.
The Economy section: 4 options from WJB / INMOTION PARTS. WJB / INMOTION PARTS WT02820 is listed in this group.
Standard Replacement: 9 parts, from BCA and NATIONAL. A representative part number is NATIONAL 02820.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER Fits: all 1950 Super Series engines | SR3481 | 🇺🇸 US | Rear14.3 mm Width | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1950 Super Series 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.
2 Differential Pinion Repair Sleeve parts are listed for the 1950 Hudson Super Series, from SCHAEFFLER and WJB / INMOTION PARTS. All of them fit every engine offered in the 1950 Super Series.
Listed part numbers: SCHAEFFLER SR3481 and WJB / INMOTION PARTS WS99155.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular Fits: all 1950 Super Series engines | WS5778 | 🇺🇸 US | Nitrile | View on Amazon |
| BCA Fits: all 1950 Super Series engines | NS5778 | 🇺🇸 US | Nitrile | View on Amazon |
| BCA Fits: all 1950 Super Series engines | NS5778V | 🇺🇸 US | Viton | View on Amazon |
| SCHAEFFLER Fits: all 1950 Super Series engines | SS2633 | 🇺🇸 US | Rear16.891 mm Width | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1950 Super Series engines | WS5778V | 🇺🇸 US | Rear OuterViton Type | 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 1950 Hudson Super Series, from WJB / INMOTION PARTS, BCA and SCHAEFFLER. WJB / INMOTION PARTS WS5778 carries the "Popular" badge. All of them fit every engine offered in the 1950 Super Series.
Listed part numbers: WJB / INMOTION PARTS WS5778, BCA NS5778 and BCA NS5778V, plus the other parts above.
Drive Shaft Center Support Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: all 1950 Super Series engines | WB88506 | 🇺🇸 US | Outside Diameter: 2.44 In | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Fits: all 1950 Super Series engines | NB88506 | 🇺🇸 US | with 1.18 IN Bearing Inside Diameter | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| METRO Fits: all 1950 Super Series engines | RP250 | 🇺🇸 US 🇨🇦 CA | Sold Individually | 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.
3 Drive Shaft Center Support Bearing parts for the 1950 Hudson Super Series come from 3 brands — WJB / INMOTION PARTS, BCA and METRO. Every part fits both the 4.2L 254cid L8 and the 4.3L 262cid L6.
The Economy section: 1 option from WJB / INMOTION PARTS. WJB / INMOTION PARTS WB88506 is listed in this group.
Standard Replacement: 1 part, from BCA. A representative part number is BCA NB88506.
1 further part sits outside the graded sections, with the same engine-level match.
Listed part numbers: WJB / INMOTION PARTS WB88506, BCA NB88506 and METRO RP250.
Buying Drivetrain Parts for a 1950 Hudson Super Series
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 4.2L 254cid L8 and the 4.3L 262cid L6.
- 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 Differential Carrier Bearing / Race .
Frequently Asked Questions
How many drivetrain parts fit the 1950 Hudson Super Series?
Our catalog currently lists 35 drivetrain parts for the 1950 Hudson Super Series across 6 subcategories and 8 brands, covering both the 4.2L 254cid L8 and the 4.3L 262cid L6. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 1950 Hudson Super Series engines?
No. On this page every drivetrain part fits both the 4.2L 254cid L8 and the 4.3L 262cid L6. 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 1950 Hudson Super Series?
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 1950 Hudson Super Series 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 1950 Hudson Super Series?
Every part on this page already fits both the 4.2L 254cid L8 and the 4.3L 262cid L6. 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 1950 Hudson Super Series
Drivetrain Parts for Other Hudson Super Series Years
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