Triumph 4 speed gearbox rebuild kit 650 750Rebuilding a Triumph 4 speed gearbox may not be too hard, but getting all the correct parts together sometimes is . After rebuilding these gearboxes for years, I finally put together a kit of all the commonly replaced parts. This kit has everything you need to get your Triumph four speed gearbox back into shape. The high gear bushing is a two piece design which is easier to install than the originals, but it must be honed or reamed to size after

4 rocker oil feed copper washers (70-1335 or E1335 )

000" (cup to cup) for 650

57-1367 LAYSHAFT BUSHING x2

and compression

455" VALVE LIFT WITHOUT COIL BIND

BSA singles (B25 etc) and Triumph singles (Tiger Cub)

095” thick Pushrod tube seals   (70-3547 or E3547)

in the USA and supply is limited

When installed with the recommended

These bushings must be sized after installation

Kibblewhite engineered and manufactures a complete 6mm valve conversion for Triumph 650 twin heads

0005") when torqued