A locking differential is a mechanical component, commonly used in vehicles, designed to overcome the chief limitation of a standard open differential by essentially "locking" both wheels on an axle together as if on a common shaft. This forces both wheels to turn in unison, regardless of the traction available to either wheel individually.
ARB air-locking differential fitted to a Mitsubishi Delica L400 LWB Diff
The foot pedal controlling the locking differential on a Kubota B6200. Stepping down on this pedal locks the rear differential. The left lever engages the front axle, and the right one enables selection between high and low speed gearing.
Dodge Power Wagons feature front and rear selectable locking differentials
Limited-slip differential
A limited-slip differential (LSD) is a type of differential gear train that allows its two output shafts to rotate at different speeds but limits the maximum difference between the two shafts. Limited-slip differentials are often known by the generic trademark Positraction, a brand name owned by General Motors and originally used for its Chevrolet branded vehicles.
Cone-type LSD
ZF LSD – clutch stack visible on left
ZF LSD – spider pinion shaft ramps visible
Audi Quattro Torsen Differential
