The final drive is the last part of the drive train that provides speed reduction. This unit reduces the speed of the propeller shaft to a suitable road wheel speed. It divides the transmitted torque from the engine between the two driving wheels, except in the case of a transverse engine, it turns the drive through a right angle to the driving wheels.
The propeller shaft in a conventional front-engine, rear - wheel drive feeds the torque into the final drive unit. The function of the final drive is to turn the drive through a right angle and divide it into two equal parts which are then delivered to the rear wheels. A final drive is also needed in a front-wheel drive but with a transverse engine, there is no need to turn the drive through a right angle. It must still split the drive into equal parts for each driven wheel.
The propeller shaft in a conventional front-engine, rear - wheel drive feeds the torque into the final drive unit. The function of the final drive is to turn the drive through a right angle and divide it into two equal parts which are then delivered to the rear wheels. A final drive is also needed in a front-wheel drive but with a transverse engine, there is no need to turn the drive through a right angle. It must still split the drive into equal parts for each driven wheel.
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