90-110 and Defender Differential - Rear
There are 2 types of rear axle fitted to the Land Rover:
1. The conventional Rover axle, from which the differential is removed as a complete unit on the front of the axle.
2. The Salisbury axle, which has an access plate on the rear of the axle for differential removal.
Rover axles have 2 types of differential, as follows:
2 pinion (standard duty) or 4 pinion (heavy duty), referring to the number of pinion gears in the differential itself.
Vehicles fitted with 2 pinion diff's have 10 spline halfshafts up to VIN KA930455 (1993), & 24 spline halfshafts from VIN LA930456 (1994) on.
Vehicles with 4 pinion diff's are all fitted with 24 spline halfshafts.