This page lists 14 drivetrain parts for the 1963 MG Midget, across 3 part types, covering the 1.1L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 1963 MG Midget, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. All 14 listed parts are Differential Pinion Bearing / Race (8 parts), Differential Pinion Repair Sleeve (3 parts) and Differential Pinion Seal (3 parts).
Every part on this page is matched to the 1.1L L4 — the only engine offered in the 1963 MG Midget.
The most listed brands for 1963 MG Midget drivetrain parts are WJB / INMOTION PARTS (5 parts), BCA (4 parts) and SKF (2 parts), plus 3 more brands. Quality grades include Economy and Standard Replacement.
2 parts on this 1963 MG Midget page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including BCA NBM88043 (Differential Pinion Bearing / Race) and NATIONAL M88043 (Differential Pinion Bearing / Race). Click any part number to see every vehicle that part fits.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTO EXTRA | M84548 | 🇺🇸 US 🇨🇦 CA | RearOuter | View on Amazon |
| WJB / INMOTION PARTS | WTM88043 | 🇺🇸 US | Rear Innerwith British-Leyland Axle | View on Amazon |
| WJB / INMOTION PARTS | WTM84510 | 🇺🇸 US | RaceCup Outside Diameter (In): 2.25 In | View on Amazon |
| WJB / INMOTION PARTS | WTM84548 | 🇺🇸 US | Rear Outerwith British-Leyland Axle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Popular | NBM88043 | 🇺🇸 US | Rear Innerwith British Leyland Axle(s) | View on Amazon |
| NATIONAL Popular | M88043 | 🇺🇸 US | Rear Innerwith British-Leyland Axle | View on Amazon |
| BCA | NBM84510 | 🇺🇸 US | Race | View on Amazon |
| BCA | NBM84548 | 🇺🇸 US | Bearing Shape: Cylindrical | View on Amazon |
This table covers the bearings and races on the differential pinion.
8 Differential Pinion Bearing / Race parts are listed for the 1963 MG Midget, from WJB / INMOTION PARTS, BCA, AUTO EXTRA and 1 other brand. BCA NBM88043 carries the "Popular" badge.
In the Economy grade, WJB / INMOTION PARTS and AUTO EXTRA supply 4 parts: the catalog's value-priced group. A representative part number is AUTO EXTRA M84548.
The Standard Replacement section lists 4 options from BCA and NATIONAL — built to original-equipment specification. BCA NBM88043 is listed in this group.
Listed part numbers: BCA NBM88043, AUTO EXTRA M84548 and WJB / INMOTION PARTS WTM88043, plus the other parts above.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER | SR3477 | 🇺🇸 US | Rearwith 1.500 In Shaft | View on Amazon |
| SKF | 480151 | 🇺🇸 US | Rear | View on Amazon |
| WJB / INMOTION PARTS | 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 for the 1963 MG Midget come from 3 brands — SCHAEFFLER, SKF and WJB / INMOTION PARTS.
Part numbers include SCHAEFFLER SR3477, SKF 480151 and WJB / INMOTION PARTS WS99149.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS51098 | 🇺🇸 US | Rear Outerwith British Leyland Axle(s) | View on Amazon |
| SKF | 15142 | 🇺🇸 US | Rear | View on Amazon |
| WJB / INMOTION PARTS | 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.
3 Differential Pinion Seal parts for the 1963 MG Midget come from 3 brands — BCA, SKF and WJB / INMOTION PARTS.
Part numbers include BCA NS51098, SKF 15142 and WJB / INMOTION PARTS WS51098.
Buying Drivetrain Parts for a 1963 MG Midget
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 1.1L 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 Pinion Repair Sleeve .
Frequently Asked Questions
How many drivetrain parts fit the 1963 MG Midget?
Our catalog currently lists 14 drivetrain parts for the 1963 MG Midget across 3 subcategories and 6 brands, covering the 1.1L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 1963 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 1963 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 1963 MG Midget?
Every part on this page is matched to the 1.1L 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 1963 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.