Wash differential components with cleaning solvent and dry with compressed air. Do not steam clean the differential components.
Wash bearings with solvent and towel dry, or dry with compressed air. DO NOT spin bearings with compressed air. Cup and bearing must be replaced as matched sets only.
Clean axle tubes and oil channels in housing.
Inspect for:
Install new shims if necessary.
Polish each axle shaft sealing surface with No. 600 crocus cloth. This can remove slight surface damage.
Do not reduce the diameter of the axle shaft seal contact surface. When polishing, the crocus cloth should be moved around the circumference of the shaft (not in-line with the shaft).