Bus synchronizer rings

gearboxes reducers drive shafts flywheel housings drive axles differentials gear shift forks rear axles gear shift cables gearbox housings clutch master cylinders clutch plates clutches gear shifters primary shafts retarders clutch slave cylinders front axles throwout bearings joystick for gear shifts central lubrication clutch baskets PTO u-joints secondary shafts synchronizer rings countershafts transmission oil coolers hanger bearings torque converters fluid couplings clutch forks transfer cases gear shafts other transmission spare parts