39 Drivetrain parts are listed for the 1977 Triumph TR7, in 5 part types, covering the 2.0L L4 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1977 Triumph TR7, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 36 parts of the 39 listed are Differential Pinion Bearing / Race (21 parts), Differential Carrier Bearing / Race (9 parts) and Universal Joint (6 parts). The other 2 part types cover the remaining 3 parts.
The 1977 Triumph TR7 came with a single engine, the 2.0L L4, and every part is verified against it.
10 brands supply drivetrain parts for the 1977 Triumph TR7, led by TIMKEN (10 parts), SKF (9 parts) and SCHAEFFLER (5 parts), plus 7 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1977 Triumph TR7. 9 parts have it, including BCA NBA6 (Differential Carrier Bearing / Race) and WJB / INMOTION PARTS WTM88010 (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 | WTL68110 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Popular | NBA6 | 🇺🇸 US 🇨🇦 CA | Bearing & Race SetIncludes Cup and Cone | View on Amazon |
| TIMKEN Popular | SET6 | 🇺🇸 US 🇨🇦 CA | Bearing & Race Set | View on Amazon |
| SCHAEFFLER | L68110 | 🇺🇸 US 🇨🇦 CA | Race Only | View on Amazon |
| SCHAEFFLER | KT13 | 🇺🇸 US 🇨🇦 CA | Bearing and Race Set | View on Amazon |
| SCHAEFFLER | KL68149 | 🇺🇸 US 🇨🇦 CA | Rear16.764 mm Width | View on Amazon |
| SKF | L68110VP | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SKF | BR13 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| TIMKEN | SET16 | 🇺🇸 US 🇨🇦 CA | Bearing & Race Set | View on Amazon |
This table covers the bearings and races that support the differential carrier.
9 Differential Carrier Bearing / Race parts are listed for the 1977 Triumph TR7, from SCHAEFFLER, TIMKEN, SKF and 2 other brands. BCA NBA6 carries the "Popular" badge.
In the Economy grade, WJB / INMOTION PARTS supplies 1 part: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS WTL68110.
The Standard Replacement section lists 8 options from SCHAEFFLER, TIMKEN, SKF and 1 other brand — built to original-equipment specification. BCA NBA6 is listed in this group.
Part numbers include BCA NBA6, WJB / INMOTION PARTS WTL68110 and TIMKEN SET6, among others listed above.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular | WTM88010 | 🇺🇸 US 🇨🇦 CA | RaceCup Outside Diameter (In): 2.6880000000000002 In | View on Amazon |
| AUTO EXTRA | M84548 | 🇺🇸 US 🇨🇦 CA | RearOuter | View on Amazon |
| FAMOUS BRAND | SM88010 | 🇺🇸 US 🇨🇦 CA | RearInner | View on Amazon |
| WJB / INMOTION PARTS | WTM84510 | 🇺🇸 US 🇨🇦 CA | RaceCup Outside Diameter (In): 2.25 In | View on Amazon |
| WJB / INMOTION PARTS | WTM84548 | 🇺🇸 US 🇨🇦 CA | Fits Rear Outerwith Standard CG Axle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Popular | NBM88010 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| TIMKEN Popular | M88010 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| TIMKEN Popular | HM88610 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| TIMKEN Popular | HM88649 | 🇺🇸 US 🇨🇦 CA | Cone | View on Amazon |
| BCA | NBM84510 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| BCA | NBM84548 | 🇺🇸 US 🇨🇦 CA | Bearing Shape: Cylindrical | View on Amazon |
| SCHAEFFLER | HM88610 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SCHAEFFLER | KHM88649 | 🇺🇸 US 🇨🇦 CA | Rear Inner25.4 mm Width | View on Amazon |
| SKF | M84510 | 🇺🇸 US 🇨🇦 CA | Rear Outer5 speed trans. | View on Amazon |
| SKF | M84510VP | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SKF | M84548 | 🇺🇸 US 🇨🇦 CA | Rear Outer5 speed trans. | View on Amazon |
| SKF | M84548VP | 🇺🇸 US 🇨🇦 CA | with 1.0000 In. Bearing Inside Diameter | View on Amazon |
| TIMKEN | M84510 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| TIMKEN | M88046 | 🇺🇸 US 🇨🇦 CA | Rear OuterIntegral Carrier | View on Amazon |
| TIMKEN | M88040 | 🇺🇸 US 🇨🇦 CA | Rear InnerRemovable Carrier | View on Amazon |
| TIMKEN | M84548 | 🇺🇸 US 🇨🇦 CA | Rear OuterRemovable Carrier | View on Amazon |
This table covers the bearings and races on the differential pinion.
21 Differential Pinion Bearing / Race parts for the 1977 Triumph TR7 come from 7 brands — TIMKEN, SKF, WJB / INMOTION PARTS and 4 other brands. The "Popular" part is WJB / INMOTION PARTS WTM88010.
The Economy section: 5 options from WJB / INMOTION PARTS, AUTO EXTRA and FAMOUS BRAND. WJB / INMOTION PARTS WTM88010 is listed in this group.
Standard Replacement: 16 parts, from TIMKEN, SKF, BCA and 1 other brand. A representative part number is BCA NBM88010.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF | 99114 | 🇺🇸 US 🇨🇦 CA | Shaft Diameter: 1.181 In | View on Amazon |
This table covers the wear sleeves used to restore a grooved pinion seal surface.
One part is listed for the 1977 Triumph TR7 — SKF 99114.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF | 11625 | 🇺🇸 US 🇨🇦 CA | RearManual trans. | View on Amazon |
| TIMKEN | 223020 | 🇺🇸 US 🇨🇦 CA | RearIntegral Carrier | 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.
2 Differential Pinion Seal parts are listed for the 1977 Triumph TR7, from SKF and TIMKEN.
This group includes SKF 11625 and TIMKEN 223020.
Universal Joint
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA | 25101X | 🇺🇸 US 🇨🇦 CA | Spicer SelectNon-Greasable | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GMB Popular | 2200500 | 🇺🇸 US 🇨🇦 CA | GreasableGrease Fitting in Cross | View on Amazon |
| MOOG Popular | 341 | 🇺🇸 US 🇨🇦 CA | Fits Rear Driveshaft at Rear AxleExcept Short Grease Fitting | View on Amazon |
| DANA | 5101X | 🇺🇸 US 🇨🇦 CA | SpicerNon-Greasable | View on Amazon |
| GMB | 2200600 | 🇺🇸 US 🇨🇦 CA | GreasableGrease Fitting in Bearing Cap | View on Amazon |
| SKF | UJ341 | 🇺🇸 US 🇨🇦 CA | Greaseable | View on Amazon |
This table covers the U-joints in the driveshaft.
6 Universal Joint parts are listed for the 1977 Triumph TR7, from DANA, GMB, MOOG and 1 other brand. GMB 2200500 carries the "Popular" badge.
Economy: 1 part, from DANA. A representative part number is DANA 25101X.
The Standard Replacement section: 5 options from GMB, MOOG, DANA and 1 other brand. GMB 2200500 is listed in this group.
This group includes GMB 2200500, DANA 25101X and MOOG 341 and the remaining parts above.
Buying Drivetrain Parts for a 1977 Triumph TR7
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 2.0L L4 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 Pinion Bearing / Race and Differential Carrier Bearing / Race .
Frequently Asked Questions
How many drivetrain parts fit the 1977 Triumph TR7?
Our catalog currently lists 39 drivetrain parts for the 1977 Triumph TR7 across 5 subcategories and 10 brands, covering the 2.0L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 1977 Triumph TR7?
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 1977 Triumph TR7 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 1977 Triumph TR7?
Every part on this page is matched to the 2.0L L4 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 1977 Triumph TR7
Drivetrain Parts for Other Triumph TR7 Years
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