Installation Procedure

Install the upper control arm to the frame.

Fig 1: Installing Upper Control Arm To Frame
Courtesy of GENERAL MOTORS CORP.
Install the upper control arm mounting bolts and the cams.
- Make sure the bolt heads are opposed inside the bracket.
- The cm lobes must point down.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

Important: Tighten the nuts with the control arm at Z height. Refer to TRIM HEIGHT INSPECTION PROCEDURE in Suspension General Diagnosis.
Install the new upper control arm nuts.
Tighten
- Tighten the front nut first, then the rear nut.
- Tighten the upper control arm cam hardware nuts to 140 N.m (103 lb ft).
Connect the upper ball joint stud to the steering knuckle.

Fig 2: Connecting Upper Ball Joint Stud To Steering Knuckle
Courtesy of GENERAL MOTORS CORP.
Install the upper ball joint retaining nut.
Tighten

Tighten the upper ball joint retaining nut to 98 N.m (72 lb ft).
Install a new cotter pin. Tighten the nut up to an additional 1/6 amount in order to insert the cotter pin through the upper ball joint stud. Bend the cotter pin ends flat against the nut.
Install the brake hose bracket retaining nut and bolt.
Tighten

Tighten the brake hose bracket retaining nut to 16 N.m (12 lb ft).

Fig 3: Installing Brake Hose Bracket Retaining Nut And Bolt
Courtesy of GENERAL MOTORS CORP.
Install the speed sensor bracket retaining nut and bolt.
Tighten

Tighten the speed sensor bracket retaining nut to 16 N.m (12 lb ft).

Fig 4: Installing Speed Sensor Bracket Retaining Nut And Bolt
Courtesy of GENERAL MOTORS CORP.
Install the tire and wheel. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
Remove the safety stand form the lower control arm.
Lower the vehicle.
Check the front wheel alignment. Refer to MEASURING WHEEL ALIGNMENT in Wheel Alignment.