Installation Procedure

Install the tie rods to the crossmember. Refer to Tie Rod Replacement (Front Wheel Drive) or Tie Rod Replacement (All Wheel Drive) in Rear Suspension.
Install the rear axle lower control arms onto the rear crossmember. Refer to Rear Axle Lower Control Arm Replacement in Rear Suspension.
Install the rear axle upper control arms onto the rear crossmember. Refer to Rear Axle Upper Control Arm Replacement in Rear Suspension.
Install the rear stabilizer shaft onto the rear crossmember. Refer toStabilizer Shaft Replacement in Rear Suspension.

Fig 1: View Of Rear Crossmember

Courtesy of GENERAL MOTORS CORP.

Raise the rear crossmember, and align the rear crossmember with the scribe marks on the frame.
Install the rear crossmember mounting bolts.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Tighten the mounting bolts.
Tighten: Tighten the rear crossmember mounting bolts to 130 N.m (96 lb ft).
Install the ALC height sensor onto the vehicle. Refer to Automatic Level Control Sensor Replacement .
Install the ALC ball stud to the vehicle. Refer to Automatic Level Control Sensor Link Ball Stud Replacement .

Fig 2: View Of Rear Differential Carrier Mounting Bolts

Courtesy of GENERAL MOTORS CORP.

Install the rear differential carrier mounting bolts (5). Refer to Differential Replacement in Rear Drive Axle.
Tighten: Tighten the rear differential carrier mounting bolts to 37 N.m (50 lb ft).
Attach the parking brake cable onto the rear crossmember.
Connect the wheel speed sensor harness onto the rear crossmember and the lower control arm.
Install the rear suspension knuckle. Refer to Knuckle Replacement in Rear Suspension.
Install the tire and the wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
Lower the vehicle.
Inspect the rear camber and toe angles and adjust as necessary. Refer to Rear Camber Adjustment and Rear Toe Adjustment in Wheel Alignment.