A forklift differential consists of a number of parts such as pinion gear, ring gear, side/spider gears, differential case assembly, rear drive axle and bearings and axle housing. The pinion gear transfers power from the drive shaft to the ring gear. The ring gear transfers most of it to the differential case assembly. Side/spider gears facilitate the movement of the drive wheels to rotate independently during rotation. The differential case assembly serves to hold the ring gear and other components that drive the rear axle. Rear drive axles are steel axles that transmit torque to the drive wheels