GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Corvette 🢒 Suspension 🢒 Tires and Wheels 🢒 Rear Axle Lubricant Level Inspection

Inspection Procedure

    Object Number: 71497 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Clean any dirt from around the differential fill plug.
  3. Remove the fill plug, lubricant tag, and washer from the differential.
  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 with synthetic axle lubricant GM P/N 12378261 (Canadian P/N 10953455).
    • If necessary, add enough limited-slip differential lubricant additive GM P/N 1052358 (Canadian P/N 992694), or equivalent to maintain the original ratio of 1.6 L (1.69 qt) of axle lubricant to 118 ml (4.0 oz) of limited-slip additive.

    Notice: Refer to Fastener Notice in the Preface section.

  6. Install the fill plug, lubricant tag, and washer to the differential.

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

  7. Lower the vehicle.