Differential & Carrier Assembly
A differential is a device that allows the driving wheels to rotate at different speeds when the vehicle turns. A differential consists of ring & pinion gear set, pinion mate, side gear and spider.
A set of axle components, a differential assembly including final reduction gear set, consists of hypo-id gear, spiral gear, straight bevel gears, pinion gears, and differential gears.
Synchronizer is a device that allows the dog gear to come to a speed matching the helical gear before the dog teeth attempt to engage. Synchronizer consists of sleeve, spring, and ring.