Front Upper

Removal Procedure

Caution: Refer to Battery Disconnect Caution in Service Precautions.

1. Disconnect the battery negative cable.
2. Raise the vehicle. Refer to Vehicle Lifting.
3. Remove the tire and wheel assembly.





4. Disconnect the brake hose from the upper control arm. Tie the hose out of the way.





5. Remove the brake hose bracket.





6. Remove the speed sensor bracket.
7. Remove the cotter pin.
8. Remove the nut.
9. Disconnect the upper ball joint from the knuckle. Refer to Upper Ball Joint Replacement.





10. Remove the cam hardware nuts, the cams, and the bolts.
11. Remove the upper control arm.

Installation Procedure





1. Install the upper control arm to the frame.
2. Install the cam hardware bolts and the cams.
- Make sure the bolt heads are opposed inside the bracket.
- The cam lobes must point down.

Notice: Refer to Fastener Notice in Service Precautions.

Important: Tighten the nuts with the control arm at Z height. Refer to Trim Height Inspection Procedure under Suspension, Testing and Inspection.

3. Install the new nuts.
Tighten
- Tighten the front nut first, then the rear nut.
- Tighten the nuts to 140 Nm (103 ft. lbs.).





4. Connect the upper ball joint stud to the knuckle.
5. Install the nut.
Tighten the nut to 98 Nm (72 ft. lbs.).
6. 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.





7. Install the brake hose bracket.





8. Install the speed sensor bracket.
Tighten the brake hose and the speed sensor nuts to 16 Nm (12 ft. lbs.).





9. Connect the brake hose.
10. Install the tire and wheel assembly.
11. Lower the vehicle.
12. Connect the battery negative cable.