Salisbury type diffs and axles were fitted to the rear of all long wheelbase classical "Land Rovers" from the Series III until 2003. That is to say, SIII 109, Stage 1, 110, 127 and 130 models. The short wheelbase models were fitted with the standard Rover type diffs, front and rear. The V8 Nineties had a 4-pinion version of the Rover diff at the rear.
In 2003, Land Rover began fitting the Range Rover P38 type diffs to all Defenders and Discoveries. It is visually similar to the Rover diff, but reputedly much stronger, and not directly interchangeable.