What is the main function of the differential pinion gears in a transaxle?

The main function of the differential pinion gears in a transaxle is to allow wheel rotation differences. This is essential for maintaining traction and stability while cornering. When a vehicle turns, the wheels on the outside of the turn must travel a greater distance compared to the wheels on the inside. The differential uses pinion gears to enable this difference in rotation speed between the left and right wheels.

This capability prevents tire scrubbing and promotes better handling, as all wheels can rotate at their appropriate speeds relative to their positions in the turn. This function is vital for smooth driving and effective handling characteristics, especially in vehicles that are driven with precision in mind, such as cars equipped with manual transmissions that require drivers to be in tune with the vehicle's dynamics.