Differential Rebuild
A driveshaft connects the rear differential mechanism to the transmission or transfer case, transferring the engine’s power to the rear wheels. The rear differential’s role is simple: change the power’s direction from longitudinal (along the car) and direct it to the wheels.
Gears inside the differential accomplish this purpose, providing a 90-degree direction change along the rear axles. The power is transmitted from the rear differential along axle shafts that connect to the wheels and rotate to propel the vehicle forward.