according to Rimmers.........
Early differentials accept 10-spline halfshafts while later units accept 24-spline shafts. In addition, some rear differentials from March 1994 are fitted with a 3-bolt flange, which accepts the rubber coupling on the rear propshaft.
Please check your axle/VIN number and refer to the following list before ordering:
10 Spline Differentials
128S axles up to 28S44171
32S axles up to 32S9121
24 Spline Differentials - 4 bolt flange
28S44172 onwards
32S9122 onwards
24 Spline Differentials - 3 bolt flange
Certain models from VIN MA81992 (March 1994)
The serial number of the rear axle is stamped on the rear or top of the axle casing, on the left hand side (roughly in line with the axle breather).
Serial numbers comprise a 3-figure code, identifying the axle type, followed by the serial number and then a suffix letter (A, B, C etc.). The final drive ratio for all models is 3.54:1.