A differential is a gear train with three drive shafts wherein the rotational speed of one shaft equals the average speed of the others. The differential permits higher revolutions per minute ...

Modern Automotives to export differential pinion shafts for BMW EV powertrain Pinion shaft provides a permanent gear reduction between the engine and the driving road-wheels.

The difference is this: Instead of being connected via a long driveshaft to the rear axle, the transmission's output shaft drives a large gear that meshes directly with the differential's ring ...