Under normal driving conditions, Limited Slip Differentials work just like regular open differentials. When one driven wheel however spins excessively, the LSD will limit slip (difference in rotation speed) and will transfer some power to the stationary good traction wheel. Drawbacks include increased mechanical complexity and weight. Clutch based LSD may also wear out with extended use, reducing their function. https://en.wikipedia.org/wiki/Limited-slip_differential Great explanation videos: Constructive feedback is appreciated.