| Diagram | GEARBOX SHAFTS AND GEARS |
| Subsystem | gearbox |
| Listed in parts books | Not catalogued by year yet |
Layshaft third gear (22T)
Layshaft third gear (22 tooth), part of the third-speed gear pair inside the gearbox cluster.
This is the layshaft third gear, a 22-tooth gear that lives inside the gearbox on the layshaft, as shown in the gearbox shafts and gears section of the parts book. It's one of the pairs that makes up third gear ratio inside the box, working with its mating gear on the mainshaft to pass power through when the box is shifted into third.
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Our catalog record for this one only shows a single appearance, tied to 1969, so we don't have a broader fitment picture beyond that. The manufacturer code on file points to Lucas, but Lucas didn't make gearbox internals - that's not right for this part, and we'd treat the gear itself as a transmission component rather than an electrical one.
If you're rebuilding a box and pulling gears for inspection, check the dogs and bushing surfaces on this one along with the rest of the cluster. Give us a call with your frame or engine number before ordering so we can confirm this is the right gear for your box.
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