The 1971 Triumph Stag has 30 drivetrain parts with verified fitment on this page — 4 part types and 14 brands, covering the 3.0L V8 engine. Each part includes a manufacturer part number and application notes.
On the 1971 Triumph Stag, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 28 parts of the 30 listed are Differential Carrier Bearing / Race (11 parts), Differential Pinion Bearing / Race (11 parts) and Universal Joint (6 parts). The other 1 part type covers the remaining 2 parts.
The 1971 Triumph Stag came with a single engine, the 3.0L V8, and every part is verified against it.
14 brands supply drivetrain parts for the 1971 Triumph Stag, led by TIMKEN (7 parts), SCHAEFFLER (5 parts) and BCA (4 parts), plus 11 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1971 Triumph Stag. 8 parts have it, including WJB / INMOTION PARTS WT15245 (Differential Carrier Bearing / Race) and ACDELCO AC15245 (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 Popular | WT15245 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| WJB / INMOTION PARTS Popular | WT15123 | 🇺🇸 US 🇨🇦 CA | Bearing Shape: Cylindrical | View on Amazon |
| AUTO EXTRA | 15123 | 🇺🇸 US 🇨🇦 CA | Fits Rearwith STD LD Axl | View on Amazon |
| FAMOUS BRAND | S15123 | 🇺🇸 US 🇨🇦 CA | RearSTD LD | View on Amazon |
| POWER TRAIN COMPONENTS | PT15123 | 🇺🇸 US 🇨🇦 CA | Rearwith Standard LD Axle | View on Amazon |
| ULTRA-POWER | WT15123 | 🇺🇸 US 🇨🇦 CA | Rearwith Standard LD Axle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Popular | 16150 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| ACDELCO | AC15245 | 🇺🇸 US 🇨🇦 CA | GoldRace Only | View on Amazon |
| BCA | NB15245 | 🇺🇸 US 🇨🇦 CA | Race Only | View on Amazon |
| BCA | NB15123 | 🇺🇸 US 🇨🇦 CA | Rearwith Standard LD Axle(s) | View on Amazon |
| TIMKEN | 16283 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
This table covers the bearings and races that support the differential carrier.
11 Differential Carrier Bearing / Race parts are listed for the 1971 Triumph Stag, from WJB / INMOTION PARTS, TIMKEN, BCA and 5 other brands. WJB / INMOTION PARTS WT15245 carries the "Popular" badge.
In the Economy grade, WJB / INMOTION PARTS, AUTO EXTRA, FAMOUS BRAND and 2 other brands supply 6 parts: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS WT15245.
The Standard Replacement section lists 5 options from TIMKEN, BCA and ACDELCO — built to original-equipment specification. TIMKEN 16150 is listed in this group.
Differential Pinion Bearing / Race
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | AC15245 | 🇺🇸 US 🇨🇦 CA | GoldRace Only | View on Amazon |
| TIMKEN Popular | 15245 | 🇺🇸 US 🇨🇦 CA | Race Only | View on Amazon |
| TIMKEN Popular | 3188 | 🇺🇸 US 🇨🇦 CA | Rear Inner | View on Amazon |
| BCA | NB21212 | 🇺🇸 US 🇨🇦 CA | Race Only | View on Amazon |
| BCA | NB21075 | 🇺🇸 US 🇨🇦 CA | Bearing Shape: Cylindrical | View on Amazon |
| SCHAEFFLER | K3188 | 🇺🇸 US 🇨🇦 CA | Rear Inner | View on Amazon |
| SCHAEFFLER | 15245 | 🇺🇸 US 🇨🇦 CA | Race Only | View on Amazon |
| SCHAEFFLER | 501014 | 🇺🇸 US 🇨🇦 CA | Race Only | View on Amazon |
| SCHAEFFLER | K15100 | 🇺🇸 US 🇨🇦 CA | Rear Outer20.638 mm Width | View on Amazon |
| TIMKEN | 15100 | 🇺🇸 US 🇨🇦 CA | Rear Outer | View on Amazon |
| TIMKEN | 3120 | 🇺🇸 US 🇨🇦 CA | Race Only | View on Amazon |
This table covers the bearings and races on the differential pinion.
11 Differential Pinion Bearing / Race parts for the 1971 Triumph Stag come from 4 brands — TIMKEN, SCHAEFFLER, BCA and 1 other brand. The "Popular" part is ACDELCO AC15245.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER | SS2582 | 🇺🇸 US 🇨🇦 CA | Rear2.69" O.D. X 0.5" Width | View on Amazon |
| TIMKEN | 470487N | 🇺🇸 US 🇨🇦 CA | Rear | 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 1971 Triumph Stag, from SCHAEFFLER and TIMKEN.
Listed part numbers: SCHAEFFLER SS2582 and TIMKEN 470487N.
Universal Joint
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA | 253214X | 🇺🇸 US 🇨🇦 CA | Spicer SelectGreasable | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GMB Popular | 2201100 | 🇺🇸 US 🇨🇦 CA | GreasableGrease Fitting in Cross | View on Amazon |
| MOOG Popular | 344 | 🇺🇸 US 🇨🇦 CA | Fits Rear Driveshaft at Rear Axle | View on Amazon |
| DANA | 53214X | 🇺🇸 US 🇨🇦 CA | SpicerGreasable | View on Amazon |
| FVP | 2201100 | 🇺🇸 US 🇨🇦 CA | GreasableGrease Fitting in Cross | View on Amazon |
| SKF | UJ344 | 🇺🇸 US 🇨🇦 CA | Greaseable | View on Amazon |
This table covers the U-joints in the driveshaft.
6 Universal Joint parts are listed for the 1971 Triumph Stag, from DANA, GMB, MOOG and 2 other brands. GMB 2201100 carries the "Popular" badge.
Economy: 1 part, from DANA. A representative part number is DANA 253214X.
The Standard Replacement section: 5 options from GMB, MOOG, DANA and 2 other brands. GMB 2201100 is listed in this group.
This group includes GMB 2201100, DANA 253214X and MOOG 344 and the remaining parts above.
Buying Drivetrain Parts for a 1971 Triumph Stag
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 V8 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 Carrier Bearing / Race and Differential Pinion Bearing / Race .
Frequently Asked Questions
How many drivetrain parts fit the 1971 Triumph Stag?
Our catalog currently lists 30 drivetrain parts for the 1971 Triumph Stag across 4 subcategories and 14 brands, covering the 3.0L V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 1971 Triumph Stag?
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 1971 Triumph Stag 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 1971 Triumph Stag?
Every part on this page is matched to the 3.0L V8 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 1971 Triumph Stag
Drivetrain Parts for Other Triumph Stag 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.