| Also known as | GB51, T1542 |
| Diagram | Fig. 7 — GEARBOX AND CASING · ref 33 |
| Subsystem | gearbox |
| Listed in parts books | 1960–1962 |
Gearbox inspection cover, Slickshift
Gearbox inspection cover for the Slickshift pre-unit Triumph gearbox, also known as GB51/T1542.
This is the gearbox inspection cover for the Slickshift-equipped pre-unit Triumph gearbox, part number 57-1542. It also shows up in older references under GB51 and T1542, so if your parts book or an old box of parts has one of those numbers on it, you're looking at the same piece.
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The cover sits on the gearbox casing and gives access to the internals for inspection or adjustment without pulling the whole case apart. Catalog listings tie it specifically to the Slickshift gearbox setup rather than a standard box, so if you're not running Slickshift this isn't the cover you want.
Our records place this across gearbox and casing listings from the early 1960s. If you're not sure whether your gearbox is the Slickshift variant, give us a call before ordering so we can confirm you've got the right cover.
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