| Also known as | T4372 |
| Diagram | Fig. 12 — PARTS REQUIRED FOR OPTIONAL 5 SPEED GEARBOX · ref 9 |
| Subsystem | gearbox |
| Listed in parts books | 1971 |
M/S High gear
Mainshaft high gear (57-4372) used in the optional 5-speed Triumph gearbox conversion.
57-4372 is the mainshaft high gear, listed in the parts book under the section for the optional 5-speed gearbox conversion. It's part of the gear cluster that rides on the mainshaft inside the gearbox shell, and it's one of the components you'd need when building up a five-speed setup rather than the standard four-speed box.
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The older reference for this part is T4372, so if you're working from an early parts book or have a part bagged up with that number on it, it's the same physical piece as 57-4372.
Our catalog record only shows this part turning up once, tied to that 5-speed conversion listing, so we don't have a lot more detail to go on. If you're sorting out a gearbox rebuild or trying to confirm this is the right gear for your box, give us a call and we'll work through it with you.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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