Triumph TR3B (TCF) TR4-250 Close Ratio Gear Set - 4 Synchro
Suitable for all Triumph gearboxes with needle roller constant pinion bearings, including 2000 but not Stag or Sprint.
The gear set uses a 1" x 23 spline input shaft to allow use of a wider range of clutches. It includes 3rd and 4th gear pairs and an adaptor enabling fitment to the imperial-spigoted mainshaft. Suits lower axle ratio e.g. 4.1:1.