Hummer H3. Manual - part 1236

2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation .

3. Support the lower control arm.

4. Remove the wheel drive shaft nut. Discard the nut.

5. Disconnect the wheel speed sensor harness from the chassis harness.

6. Disconnect the wheel speed sensor harness from inner fender panel.

7. Disconnect the outer tie rod from the steering knuckle. Refer to Rack and Pinion Outer

Tie Rod End Replacement .

2007 Hummer H3

2007 SUSPENSION Front Suspension - H3

Fig. 9: Identifying Upper Control Arm Pinch Bolt & Lower Control Arm Retaining
Nut
Courtesy of GENERAL MOTORS CORP.

8. Remove and discard the upper control arm pinch bolt and nut from the ball joint.

9. Remove and discard the lower control arm retaining nut.

10. Separate the lower ball joint from the steering knuckle using the J 43631 . See Special

Tools.

2007 Hummer H3

2007 SUSPENSION Front Suspension - H3

Fig. 10: Steering Knuckle Assembly
Courtesy of GENERAL MOTORS CORP.

11. Remove the steering knuckle assembly from the vehicle and set on a bench.

12. Remove the ball joint using the J 6627-A .

13. Remove the wheel hub and bearing assembly. Refer to Front Wheel Hub, Bearing and

Seal Replacement.

Installation Procedure

1. Install the wheel hub and bearing assembly. Refer to Front Wheel Hub, Bearing and Seal

Replacement.

2. Clean all grease and contaminants from the tapered section and the threads of the lower ball

joint and the tie rod end.

3. Clean and inspect the taper holes and the mounting surfaces of the steering knuckle. If any

2007 Hummer H3

2007 SUSPENSION Front Suspension - H3

of the tapered holes are elongated, out of round or damaged, replace the steering knuckle.

Fig. 11: Identifying Upper Control Arm Pinch Bolt & Lower Control Arm Retaining
Nut
Courtesy of GENERAL MOTORS CORP.

4. Connect the lower ball joint to the steering knuckle and install the new retaining nut.

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

2007 SUSPENSION Front Suspension - H3