This page lists 17 drivetrain parts for the 1966 Fargo D210 Pickup, across 4 part types, covering both the 3.7L 225cid L6 and the 5.2L 318cid V8. Every part shows its brand, manufacturer part number and fitment notes.
The drivetrain system on the 1966 Fargo D210 Pickup moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. The largest groups are Differential Pinion Bearing / Race (9 parts), Differential Carrier Bearing / Race (5 parts) and Differential Cover Gasket (2 parts). The other 1 part type covers the remaining 1 part.
The 1966 Fargo D210 Pickup was sold with both the 3.7L 225cid L6 and the 5.2L 318cid V8. All 17 parts on this page fit every engine.
5 brands supply drivetrain parts for the 1966 Fargo D210 Pickup, led by WJB / INMOTION PARTS (6 parts), BCA (5 parts) and NATIONAL (4 parts), plus 2 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1966 Fargo D210 Pickup. 3 parts have it, including NATIONAL 25520 (Differential Carrier Bearing / Race) and WJB / INMOTION PARTS WTHM89443 (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 1966 D210 Pickup engines | WT25520 | 🇨🇦 CA | RaceCup Outside Diameter (In): 3.2650000000000001 In | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1966 D210 Pickup engines | WT25590 | 🇨🇦 CA | Rearwith 8.75 IN Ring Gear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: all 1966 D210 Pickup engines | 25520 | 🇨🇦 CA | Taper Bearing CupRace | View on Amazon |
| BCA Fits: all 1966 D210 Pickup engines | NB25520 | 🇨🇦 CA | Race | View on Amazon |
| BCA Fits: all 1966 D210 Pickup engines | NB25590 | 🇨🇦 CA | Rearwith # 36 Rear Axle | View on Amazon |
This table covers the bearings and races that support the differential carrier.
5 Differential Carrier Bearing / Race parts are listed for the 1966 Fargo D210 Pickup, from WJB / INMOTION PARTS, BCA and NATIONAL. NATIONAL 25520 carries the "Popular" badge. All of them fit every engine offered in the 1966 D210 Pickup.
In the Economy grade, WJB / INMOTION PARTS supplies 2 parts: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS WT25520.
The Standard Replacement section lists 3 options from BCA and NATIONAL — built to original-equipment specification. NATIONAL 25520 is listed in this group.
Listed part numbers: NATIONAL 25520, WJB / INMOTION PARTS WT25520 and WJB / INMOTION PARTS WT25590, plus the other parts above.
Differential Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: all 1966 D210 Pickup engines | RDS6583 | 🇨🇦 CA | Rearwith 8.75 (In) Ring Gear | View on Amazon |
| VICTOR REINZ Fits: all 1966 D210 Pickup engines | 711482500 | 🇨🇦 CA | with 10 Bolt Holeswith 8.75 IN Ring Gear | 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 1966 Fargo D210 Pickup, from FEL-PRO and VICTOR REINZ. All of them fit every engine offered in the 1966 D210 Pickup.
Listed part numbers: FEL-PRO RDS6583 and VICTOR REINZ 711482500.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular Fits: all 1966 D210 Pickup engines | WTHM89443 | 🇨🇦 CA | Rear Outerwith 8.75 IN Ring Gear | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1966 D210 Pickup engines | WTHM89410 | 🇨🇦 CA | RaceCup Outside Diameter (mm): 76.2 MM | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1966 D210 Pickup engines | WTHM89446 | 🇨🇦 CA | Rear Innerwith 8.75 IN Ring Gear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: all 1966 D210 Pickup engines | HM89410 | 🇨🇦 CA | RaceTaper Bearing Cup | View on Amazon |
| BCA Fits: all 1966 D210 Pickup engines | NBHM89410 | 🇨🇦 CA | Race | View on Amazon |
| BCA Fits: all 1966 D210 Pickup engines | NBHM89446 | 🇨🇦 CA | Bearing Shape: Cylindrical | View on Amazon |
| BCA Fits: all 1966 D210 Pickup engines | NBHM89443 | 🇨🇦 CA | Rear Outerwith Chrysler RA36 Axle(S) | View on Amazon |
| NATIONAL Fits: all 1966 D210 Pickup engines | HM89446 | 🇨🇦 CA | Taper Bearing Cone | View on Amazon |
| NATIONAL Fits: all 1966 D210 Pickup engines | HM89443 | 🇨🇦 CA | Rear Outerwith 8.75 IN Ring Gear | View on Amazon |
This table covers the bearings and races on the differential pinion.
9 Differential Pinion Bearing / Race parts for the 1966 Fargo D210 Pickup come from 3 brands — WJB / INMOTION PARTS, NATIONAL and BCA. The "Popular" part is WJB / INMOTION PARTS WTHM89443. Every part fits both the 3.7L 225cid L6 and the 5.2L 318cid V8.
The Economy section: 3 options from WJB / INMOTION PARTS. WJB / INMOTION PARTS WTHM89443 is listed in this group.
Standard Replacement: 6 parts, from NATIONAL and BCA. A representative part number is NATIONAL HM89410.
This group includes WJB / INMOTION PARTS WTHM89443, WJB / INMOTION PARTS WTHM89410 and WJB / INMOTION PARTS WTHM89446 and the remaining parts above.
Transfer Case Main Shaft Pilot Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: all 1966 D210 Pickup engines | WRQ15902 | 🇨🇦 CA | Fits with 4-Speed New Process 420 Transmission | 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.
This group shows a single part: WJB / INMOTION PARTS WRQ15902.
Buying Drivetrain Parts for a 1966 Fargo D210 Pickup
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 225cid 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 Differential Carrier Bearing / Race .
Frequently Asked Questions
How many drivetrain parts fit the 1966 Fargo D210 Pickup?
Our catalog currently lists 17 drivetrain parts for the 1966 Fargo D210 Pickup across 4 subcategories and 5 brands, covering both the 3.7L 225cid L6 and the 5.2L 318cid V8. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 1966 Fargo D210 Pickup engines?
No. On this page every drivetrain part fits both the 3.7L 225cid 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 1966 Fargo D210 Pickup?
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 Fargo D210 Pickup 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 Fargo D210 Pickup?
Every part on this page already fits both the 3.7L 225cid 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 1966 Fargo D210 Pickup
Drivetrain Parts for Other Fargo D210 Pickup Years
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