| Diagram | GEARBOX SHAFTS, BEARINGS AND INNER COVER |
| Subsystem | gearbox |
| Listed in parts books | Not catalogued by year yet |
Mainshaft High Gear (22T)
The 22-tooth mainshaft high gear from inside the gearbox cluster.
This is the mainshaft high gear, a 22-tooth gear that lives inside the gearbox on the mainshaft. It's one of the pieces that makes up the gear cluster, and it's what engages when the box is shifted into top gear. The figure this part comes from covers the gearbox shafts, bearings, and inner cover, so it's grouped with the internal hardware that does the actual gear-changing work, not anything on the outside of the case.
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The manufacturer code attached to this part number points to Lucas in our system, but Lucas made electrics, not gearbox internals, so that tag is off. This is a mechanical gearbox component, plain and simple.
Our catalog only shows this part turning up once, tied to 1968. We don't have more detail on it beyond that, so if you're trying to match it to a specific gearbox or model, give us a call and we'll confirm fitment before you order.
Sorry if we got something wrong here. If you think this information isn't correct, .