Supplied with a new mainshaft, which carries a larger than standard spigot bearing.
Mainshaft gears run on caged needle roller bearings.
Gear faces have 3J milled oil pockets and oil scrolls throughout the bore to increase oil flow and aid the lubrication of gears.
Kit comes complete with gasket, oil seal and bearing set.
Kit also comes with new reverse gear, negating the need to modify or use old/worn 1st gear when fitting this gear kit.