What is the Difference Between a Limited-Slip Differential and a Differential Lock?

[SanJaxon]

Limited-slip differentials and mechanical differential locks each have their own advantages, as one is suitable for off-road performance while the other is better for on-road comfort. The specific differences are as follows: 1. Simply put, a differential lock is a 'lock' that secures the left and right half-shafts of a vehicle. Once locked, the half-shafts function as if there were no differential, which is primarily used in off-road scenarios—when one wheel is stuck, the adjacent wheel still has power to help the vehicle escape. 2. A Limited-Slip Differential (LSD), as the name suggests, limits wheel slippage. When it detects a wheel slipping, it can prevent power from being transmitted to the slipping wheel and instead direct it to the wheel with traction. In essence, a differential lock is a 'lock' on the differential, while an LSD is an improved version of the differential. An LSD can also incorporate the functionality of a differential lock, known as a limited-slip differential lock, making it more complex than a standard differential lock.