A Differential transfers the torque power produced by the engine to the wheels,
enabling the wheels to run at different speeds to maintain traction, as and when the situation demands. Their are a variety of differential centers for different applications such as Single wheeler, True Trac, E locker, Kaaz locker, ARB locker etc. Torque is passed on from the engine to the differential via the transmission and tail shaft. Therefore to make your car run smooth and efficiently, quality periodic maintenance of tail shaft, CV joints, universals and differential is a MUST.