This page lists 26 drivetrain parts for the 1966 MG Midget, across 4 part types, covering both the 1.1L L4 and the 1.3L L4. Every part shows its brand, manufacturer part number and fitment notes.
On the 1966 MG Midget, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. Most of the listed parts are Differential Pinion Bearing / Race (13 parts), Universal Joint (6 parts) and Differential Pinion Seal (4 parts). The other 1 part type covers the remaining 3 parts.
The 1966 MG Midget was sold with both the 1.1L L4 and the 1.3L L4. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
10 brands supply drivetrain parts for the 1966 MG Midget, led by WJB / INMOTION PARTS (5 parts), TIMKEN (5 parts) and BCA (4 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 1966 MG Midget. 5 parts have it, including TIMKEN M88010 (Differential Pinion Bearing / Race) and GMB 2200500 (Universal Joint). Each part number opens a page with every vehicle that part fits.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTO EXTRA Fits: 1.1L L4 | M84548 | 🇺🇸 US 🇨🇦 CA | RearOuter | View on Amazon |
| WJB / INMOTION PARTS Fits: 1.1L L4 | WTM88043 | 🇺🇸 US | Rear Innerwith British-Leyland Axle | View on Amazon |
| WJB / INMOTION PARTS Fits: 1.1L L4 | WTM84510 | 🇺🇸 US | RaceCup Outside Diameter (In): 2.25 In | View on Amazon |
| WJB / INMOTION PARTS Fits: 1.1L L4 | WTM84548 | 🇺🇸 US | Rear Outerwith British-Leyland Axle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Popular Fits: 1.1L L4 | M88010 | 🇺🇸 US | Race | View on Amazon |
| TIMKEN Popular Fits: 1.1L L4 | M84510 | 🇺🇸 US | Race | View on Amazon |
| TIMKEN Popular Fits: 1.1L L4 | M88048 | 🇺🇸 US | Rear Inner | View on Amazon |
| BCA Fits: 1.1L L4 | NBM84510 | 🇺🇸 US | Race | View on Amazon |
| BCA Fits: 1.1L L4 | NBM88043 | 🇺🇸 US | Rear Innerwith British Leyland Axle(s) | View on Amazon |
| BCA Fits: 1.1L L4 | NBM84548 | 🇺🇸 US | Bearing Shape: Cylindrical | View on Amazon |
| NATIONAL Fits: 1.1L L4 | M88043 | 🇺🇸 US | Rear Innerwith British-Leyland Axle | View on Amazon |
| SCHAEFFLER Fits: 1.1L L4 | KM88048 | 🇺🇸 US | Rear Inner1.313 In Inside Diameter X 2.688 In Outside Diameter X 0.875 In Thick | View on Amazon |
| TIMKEN Fits: 1.1L L4 | M84548 | 🇺🇸 US | Rear Outer | View on Amazon |
This table covers the bearings and races on the differential pinion.
13 Differential Pinion Bearing / Race parts for the 1966 MG Midget come from 6 brands — TIMKEN, WJB / INMOTION PARTS, BCA and 3 other brands. The "Popular" part is TIMKEN M88010.
The Economy section lists 4 options from WJB / INMOTION PARTS and AUTO EXTRA — the catalog's value-priced group. AUTO EXTRA M84548 is listed in this group.
In the Standard Replacement grade, TIMKEN, BCA, NATIONAL and 1 other brand supply 9 parts: built to original-equipment specification. A representative part number is TIMKEN M88010.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER Fits: 1.1L L4 | SR3477 | 🇺🇸 US | Rearwith 1.500 In Shaft | View on Amazon |
| SKF Fits: 1.1L L4 | 480151 | 🇺🇸 US | Rear | View on Amazon |
| WJB / INMOTION PARTS Fits: 1.1L L4 | WS99149 | 🇺🇸 US | Rear Outerwith British Leyland Axle | View on Amazon |
This table covers the wear sleeves used to restore a grooved pinion seal surface.
3 Differential Pinion Repair Sleeve parts are listed for the 1966 MG Midget, from SCHAEFFLER, SKF and WJB / INMOTION PARTS.
This group includes SCHAEFFLER SR3477, SKF 480151 and WJB / INMOTION PARTS WS99149.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Fits: 1.1L L4 | NS51098 | 🇺🇸 US | Rear Outerwith British Leyland Axle(s) | View on Amazon |
| SKF Fits: 1.1L L4 | 15142 | 🇺🇸 US | Rear | View on Amazon |
| TIMKEN Fits: 1.1L L4 | 51098 | 🇺🇸 US | Rear | View on Amazon |
| WJB / INMOTION PARTS Fits: 1.1L L4 | WS51098 | 🇺🇸 US | Rear Outerwith British Leyland Axle | 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.
4 Differential Pinion Seal parts are listed for the 1966 MG Midget, from BCA, SKF, TIMKEN and 1 other brand.
This group includes BCA NS51098, SKF 15142 and TIMKEN 51098 and the remaining parts above.
Universal Joint
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANA Fits: 1.1L L4 | 25101X | 🇺🇸 US | Spicer SelectNon-Greasable | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GMB Popular Fits: 1.1L L4 | 2200500 | 🇺🇸 US | GreasableGrease Fitting in Cross | View on Amazon |
| MOOG Popular Fits: 1.1L L4 | 341 | 🇺🇸 US | Fits Rear Driveshaft at Rear AxleExcept Short Grease Fitting | View on Amazon |
| DANA Fits: 1.1L L4 | 5101X | 🇺🇸 US | SpicerNon-Greasable | View on Amazon |
| GMB Fits: 1.1L L4 | 2200600 | 🇺🇸 US | GreasableGrease Fitting in Bearing Cap | View on Amazon |
| SKF Fits: 1.1L L4 | UJ341 | 🇺🇸 US | Greaseable | View on Amazon |
This table covers the U-joints in the driveshaft.
6 Universal Joint parts are listed for the 1966 MG Midget, 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.
Listed part numbers: GMB 2200500, DANA 25101X and MOOG 341, plus the other parts above.
Buying Drivetrain Parts for a 1966 MG Midget
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Match the engine first. Every drivetrain part here is engine-specific; each row shows which engine(s) it fits.
- 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 Universal Joint .
Frequently Asked Questions
How many drivetrain parts fit the 1966 MG Midget?
Our catalog currently lists 26 drivetrain parts for the 1966 MG Midget across 4 subcategories and 10 brands, covering both the 1.1L L4 and the 1.3L L4. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 1966 MG Midget engines?
Yes. Every drivetrain part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of drivetrain problems on a 1966 MG Midget?
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 MG Midget 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 MG Midget?
First match the engine — each row shows which engine(s) the part fits. 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 MG Midget
Drivetrain Parts for Other MG Midget 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.