GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1827285  Size: SH
  1. Ignition key OFF.
  2. Remove the propeller shaft and wheel drive axles from the rear drive module.
  3. Remove the exhaust muffler.
  4. Remove the spare tire securing bracket bolt.

  5. Object Number: 1827283  Size: SH

    Important: Support rear drive module while it is disengaged from the body panel.

  6. Remove the front/rear securing bolts of the rear drive module.

  7. Object Number: 1827274  Size: SH
  8. Lower the support slowly with care in order to avoid damaging the control module wiring harness.
  9. Remove the coupling control module (CCM) connector.
  10. Remove the rear drive module from the vehicle.

Installation Procedure


    Object Number: 1827274  Size: SH
  1. Raise the rear drive module onto the support slowly and connect the coupling control module (CCM) connector.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1827282  Size: SH
  3. Install the front/rear securing bolts of the rear drive module.
  4. Tighten

        • Tighten the front securing bolts of the rear drive module to 117 N·m (86 lb ft).
        • Tighten the rear securing bolts of the rear drive module to 180 N·m (133 lb ft).

    Object Number: 1827283  Size: SH
  5. Install the propeller shaft and wheel drive axles to the rear drive module flange.

  6. Object Number: 1827285  Size: SH
  7. Install the exhaust muffler.
  8. Install the spare tire and secure the bracket bolt.
  9. Check the rear wheel alignment.