For 1990-2009 cars

### Inspection Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Clean any dirt from around the differential fill plug.
3. Remove the fill plug from the differential and drain the fluid.
4. Check the differential fluid level. it should be even with the bottom of the fill plug hole to no lower than 6 mm (0.25 in) below the opening.
5. Add new fluid if necessary.
6. Fill the differential with 75W90 synthetic axle lubricant , SGM P/N 89021677 or equivalent. Refer to Approximate Fluid Capacities .

Notice: Refer to Fastener Notice in the Preface section.

7. Install the differential fill plug.

Tighten
Tighten the differential fill plug to 35 ± 8 N·m (26 ± 6 lb ft).

8. Lower the vehicle.