Center Differential

A normal differential is used in cars to help power the drive wheels while allowing them to spin independently of each other during cornering (same power, different rotational speeds). In vehicles with four-wheel drive, a center differential is required because during a tight turn all four wheels are rotating with different speeds.

Receiving power from the engine through the transmission or the transfer box, the center differential regulates the power between the front and rear axles, thus allowing different rates of traveling.