GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

    • J 21474-01 Control Arm Bushing Set
    • J 42112 Rear Differential Bushing Kit
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Lower the differential. Refer to Differential Replacement .

  3. Object Number: 218699  Size: SH
  4. Remove the engine fuel filter retaining strap.
  5. Suspend the engine fuel filter (1) to one side.

  6. Object Number: 218706  Size: SH
  7. Perform the following steps usingJ 21474-01 to press out the bushing(s):
  8. Important: The rear differential bushings are removed from the inside outward. Once the rear differential bushings are removed they are not reusable.

    5.1. Install the J 21474-5 Bushing Receiver onto the J 21474-19 3/8-inch bolt.
    5.2. Insert the assembly through the bushing from the outside of the bushing.
    5.3. Install the J 42112-4 Bushing Driver/Remover onto the J 21474-19 3/8-inch bolt.
    5.4. Install the J 21474-18 3/8-inch nut onto the J 21474-19 3/8-inch bolt.
  9. Hold the J 21474-19 3/8-inch bolt while tightening the J 21474-18 3/8-inch nut until the bushing is removed.

Installation Procedure


    Object Number: 218720  Size: SH
  1. The bushing must be installed with the correct orientation as shown.
  2. Perform the following steps to install the bushing:

  3. Object Number: 218710  Size: SH
    2.1. Fit the J 21474-5 Bushing Receiver onto the J 21474-19 3/8-inch bolt.
    2.2. Insert the above assembly through the bushing bore from the inside outward.
    2.3. Position the bushing onto the J 21474-19 3/8-inch bolt.
    2.4. Then, into the bushing bore.
    2.5. Install the J 42112-5 Bushing Driver/Installer onto the J 21474-19 3/8-inch bolt.
    2.6. Install the J 21474-18 3/8-inch nut onto the J 21474-19 3/8-inch bolt.
    2.7. Draw the bushing into the bore with the correct orientation by holding the J 21474-18 3/8-inch nut stationary while tightening the J 21474-19 3/8-inch bolt.
    2.8. The bushing is positioned when the J 42112-5 Bushing Driver/Installer bottoms on the rear cross-member.

    Object Number: 218725  Size: SH
  4. Measure the distance between the inside surfaces of the bushings as shown. The distance should be between 300-302 mm (11.81 in and 11.88 in).
  5. Remove the tools.

  6. Object Number: 218699  Size: SH
  7. Reposition the engine fuel filter.
  8. Fasten the engine fuel filter retaining strap around the filter.
  9. Install the differential. Refer to Differential Replacement .
  10. Lower the vehicle.