Difference between 4High and 4High Lock

[Michael1]

Originally Posted by ChevyHighPerformance

4 High Lock - allows a 50%/50% split front/rear for more slippery surfaces

Technically, there is no torque split when locked, because it is no longer a differential. For example, if the front encounters a slippery surface, torque will be transmitted to the rear up to 100%, and vice versa.

Michael.