GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2004 🢒 XLR 🢒 Suspension 🢒 Rear Suspension 🢒 Crossmember Replacement

Removal Procedure

    Object Number: 919156 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Disconnect the wheel speed sensors harness connectors.
  4. Disconnect the Inner tie rod end studs from the rear crossmember. Refer to Tie Rod Replacement .
  5. Disconnect the lower control arms from the crossmember. Refer to Rear Axle Lower Control Arm Replacement .
  6. Support the rear drive shafts and rear suspension knuckles.
  7. Remove the transverse spring. Refer to Rear Transverse Spring Replacement .
  8. Using a transmission jack, support the Crossmember.
  9. Remove the transaxle mount lower nuts. Refer to Transmission Mount Replacement in Rear Drive Axle.
  10. Disconnect all the electrical harness and connectors from the crossmember.
  11. Disconnect the brake pipes from the crossmember.
  12. Using a transmission jack, support the transaxle.
  13. Using hand tools only, remove the rear crossmember mounting nuts.
  14. Remove the crossmember from the vehicle.
  15. Discard the rear crossmember mounting nuts.

Installation Procedure
  1. Install the crossmember to the vehicle.
    2. • Align the crossmember dowel pins to the holes in the frame rails.
    • Align the transaxle mount studs to the crossmember.

    Notice: Refer to Fastener Notice in the Preface section.

    Important: Only use new crossmember mounting nuts.

  2. Using hand tools only, install new rear suspension crossmember mounting nuts.

    3. Tighten
    Tighten nuts to 110 N·m (81 lb ft).

  3. Remove the transmission jack from the transmission pan.
  4. Connect all electrical harness and connectors to the crossmember.
  5. Connect the brake pipes to the retainers in the crossmember.
  6. Install the transaxle mount lower nuts. Refer to Transmission Mount Replacement in Rear Drive Axle.
  7. Install the transverse spring to the crossmember. Refer to Rear Transverse Spring Replacement .
  8. Install the lower control arms to the crossmember. Refer to Rear Axle Lower Control Arm Replacement .
  9. Install the inner tie rod end studs into the crossmember. Refer to Tie Rod Replacement .

    10. Object Number: 919156 Size: SH
  10. Connect the wheel speed sensors harness connector.
  11. Install the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  12. Lower the vehicle.