The 1966 Humber Imperial has 37 drivetrain parts with verified fitment on this page — 8 part types and 6 brands, covering the 3.0L L6 engine. Each part includes a manufacturer part number and application notes.
On the 1966 Humber Imperial, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 27 parts of the 37 listed are Differential Rebuild Kit (12 parts), Differential Pinion Bearing / Race (11 parts) and Differential Carrier Bearing / Race (4 parts). The other 5 part types cover the remaining 10 parts.
The 1966 Humber Imperial came with a single engine, the 3.0L L6, and every part is verified against it.
6 brands supply drivetrain parts for the 1966 Humber Imperial, led by MOTIVE GEAR (13 parts), RICHMOND (7 parts) and WJB / INMOTION PARTS (6 parts), plus 3 more brands. Quality grades include Master Kit, Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1966 Humber Imperial. 6 parts have it, including WJB / INMOTION PARTS WT3420 (Differential Pinion Bearing / Race) and RICHMOND XL10371 (Differential Rebuild Kit). 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 | WT362A | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS | WT368A | 🇺🇸 US | Rearwith Rootes Axle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NB362A | 🇺🇸 US | Race | View on Amazon |
| BCA | NB368A | 🇺🇸 US | Repair Bearing | View on Amazon |
This table covers the bearings and races that support the differential carrier.
4 Differential Carrier Bearing / Race parts are listed for the 1966 Humber Imperial, from WJB / INMOTION PARTS and BCA.
In the Economy grade, WJB / INMOTION PARTS supplies 2 parts: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS WT362A.
The Standard Replacement section lists 2 options from BCA — built to original-equipment specification. BCA NB362A is listed in this group.
This group includes WJB / INMOTION PARTS WT362A, WJB / INMOTION PARTS WT368A and BCA NB362A and the remaining parts above.
Differential Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTIVE GEAR | 5101 | 🇺🇸 US | RearChrysler 8.75" (489/741/742) | 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.
One part is listed for the 1966 Humber Imperial — MOTIVE GEAR 5101.
Differential Gear Installation Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| RICHMOND | 831037B | 🇺🇸 US | Install Kit Includes Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Marking Compound, Pinion Nut, Pinion Seal, Ring Gear Bolts, Shims (Pinion, Carrier), and Thread Locking Compound | View on Amazon |
This table covers the Differential Gear Installation kits.
This group shows a single part: RICHMOND 831037B.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular | WT3420 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS Popular | WT3490 | 🇺🇸 US | Rear Innerwith Rootes Axle | View on Amazon |
| WJB / INMOTION PARTS | WT02420 | 🇺🇸 US | Outside Diameter: 2.6880000000000002 InRace | View on Amazon |
| WJB / INMOTION PARTS | WT02475 | 🇺🇸 US | Rear Outerwith Rootes Axle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 02475 | 🇺🇸 US | Rear Outerwith Rootes Axle | View on Amazon |
| BCA | NB3420 | 🇺🇸 US | Race Only | View on Amazon |
| BCA | NB02475 | 🇺🇸 US | Rear Outerwith Rootes Axle(s) | View on Amazon |
| BCA | NB3490 | 🇺🇸 US | Rear Innerwith Rootes Axle(s) | View on Amazon |
| MOTIVE GEAR | R875ERPK | 🇺🇸 US | KitKoyo Bearings | View on Amazon |
| MOTIVE GEAR | R875ERTPK | 🇺🇸 US | Pinion Bearing Kit Includes Timken Pinion Bearings, Brush, Crush Sleeve, Marking Compound, Pinion Nut, Pinion Seal, Pinion Shims, and Thread Locking Compound | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NB02420 | 🇺🇸 US | Race | View on Amazon |
This table covers the bearings and races on the differential pinion.
11 Differential Pinion Bearing / Race parts for the 1966 Humber Imperial come from 4 brands — WJB / INMOTION PARTS, BCA, MOTIVE GEAR and 1 other brand. The "Popular" part is WJB / INMOTION PARTS WT3420.
The Economy section: 4 options from WJB / INMOTION PARTS. WJB / INMOTION PARTS WT3420 is listed in this group.
Standard Replacement: 6 parts, from BCA, MOTIVE GEAR and NATIONAL. A representative part number is NATIONAL 02475.
1 further part sits outside the graded sections, with the same engine-level match.
Differential Rebuild Kit
Master Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| RICHMOND Popular | XL10371 | 🇺🇸 US | EXCel | View on Amazon |
| RICHMOND Popular | 8310371 | 🇺🇸 US | Timken Bearings | View on Amazon |
| RICHMOND Popular | XL10381 | 🇺🇸 US | EXCel | View on Amazon |
| MOTIVE GEAR | R875ERMK | 🇺🇸 US | Master Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack) | View on Amazon |
| MOTIVE GEAR | R875ERSMK | 🇺🇸 US | Master Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve | View on Amazon |
| MOTIVE GEAR | R875ERMKT | 🇺🇸 US | Master Bearing Kit Includes Timken Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve or Preload Shim Pack | View on Amazon |
| MOTIVE GEAR | R875ERSMKT | 🇺🇸 US | Master Bearing Kit Includes Timken Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve | View on Amazon |
| RICHMOND | 8310381 | 🇺🇸 US | Timken Bearings | View on Amazon |
Standard Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTIVE GEAR | R875ER | 🇺🇸 US | Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Markin | View on Amazon |
| MOTIVE GEAR | R875ERS | 🇺🇸 US | Bearing Kit Includes Koyo Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve or Prel | View on Amazon |
| MOTIVE GEAR | R875ERT | 🇺🇸 US | Bearing Kit Includes Timken Tapered Bearings , Brush, Cover Gasket (or RTV), Crush Sleeve (or Preload Shim Pack), Mark | View on Amazon |
| MOTIVE GEAR | R875ERST | 🇺🇸 US | Bearing Kit Includes Timken Tapered Bearings, Brush, Cover Gasket (or RTV), Crush Sleeve or Preload Shim Pack | View on Amazon |
This table covers kits that group the bearings, races and seals for a differential rebuild.
12 Differential Rebuild Kit parts for the 1966 Humber Imperial come from 2 brands — MOTIVE GEAR and RICHMOND. The "Popular" part is RICHMOND XL10371.
The Master Kit section lists 8 options from RICHMOND and MOTIVE GEAR — grouped under the catalog's "Master Kit" designation — the notes column spells out what sets them apart. RICHMOND XL10371 is listed in this group.
In the Standard Kit grade, MOTIVE GEAR supplies 4 parts: grouped under the catalog's "Standard Kit" designation — the notes column spells out what sets them apart. A representative part number is MOTIVE GEAR R875ER.
Differential Ring and Pinion
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| RICHMOND | 6900451 | 🇺🇸 US | RearChrysler 8.75" (742 Housing) | View on Amazon |
| RICHMOND | 6900461 | 🇺🇸 US | RearChrysler 8.75" (742 Housing) | View on Amazon |
This table covers the ring-and-pinion gear sets that set the axle ratio.
RICHMOND supplies both parts for the 1966 Humber Imperial.
Part numbers include RICHMOND 6900451 and RICHMOND 6900461.
Drive Shaft End Yoke
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA | 10025502 | 🇺🇸 US | Spicer | View on Amazon |
| DANA | 10025498 | 🇺🇸 US | Spicer | View on Amazon |
| DANA | 10025496 | 🇺🇸 US | Spicer | View on Amazon |
| DANA | 10025500 | 🇺🇸 US | Spicer | View on Amazon |
This table covers the Drive Shaft End yokes.
DANA supplies the 4 Drive Shaft End Yoke parts for the 1966 Humber Imperial.
Part numbers include DANA 10025502, DANA 10025498 and DANA 10025496, among others listed above.
Universal Joint U-Bolt Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTIVE GEAR | MGUB1310 | 🇺🇸 US | Competition Yoke U-BoltIncl. Longer Chromoly U-Bolts/Grade 8 Bolts | View on Amazon |
| MOTIVE GEAR | MGUB1310XL | 🇺🇸 US | 1310 U-Bolt KitExtra Long Bolt | View on Amazon |
This table covers the Universal Joint U-Bolt kits.
2 Universal Joint U-Bolt Kit parts for the 1966 Humber Imperial come from MOTIVE GEAR.
Part numbers include MOTIVE GEAR MGUB1310 and MOTIVE GEAR MGUB1310XL.
Buying Drivetrain Parts for a 1966 Humber Imperial
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Confirm you have the 3.0L L6 engine — every part on this page is matched to it.
- 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 Rebuild Kit and Differential Pinion Bearing / Race .
Frequently Asked Questions
How many drivetrain parts fit the 1966 Humber Imperial?
Our catalog currently lists 37 drivetrain parts for the 1966 Humber Imperial across 8 subcategories and 6 brands, covering the 3.0L L6 engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 1966 Humber Imperial?
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 Humber Imperial 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 Humber Imperial?
Every part on this page is matched to the 3.0L L6 engine. 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 Humber Imperial
Drivetrain Parts for Other Humber Imperial Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.