Hummer H2. Manual — part 2176

Fig. 13: Identifying Steering Knuckle
Courtesy of GENERAL MOTORS CORP.

3. Install the steering knuckle.

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

Tighten: Tighten the nut to 100 N.m (74 lb ft).

5. Connect the upper ball joint to the steering knuckle and install the retaining nut.

Tighten: Tighten the nut to 50 N.m (37 lb ft).

6. Install the brake hose and the bracket retaining bolt to the steering knuckle

Tighten: Tighten the bolt to 9 N.m (80 lb in).

NOTE:

Refer to Fastener Notice in Cautions and Notices.

2004 Hummer H2

2004 SUSPENSION Front Suspension - Hummer H2

7. Connect the outer tie rod to the steering knuckle. Refer to Tie Rod Replacement - Outer in Steering

Linkage (Non- Rack and Pinion).

8. Install the wheel hub and bearing assembly. Refer to Wheel Hub, Bearing, and Seal Replacement .

9. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

10. Remove the lower control arm support.

11. Lower the vehicle.

12. Verify the wheel alignment. Refer to Wheel Alignment Specifications .

UPPER CONTROL ARM REPLACEMENT

Tools Required

z

J 43631 Ball Joint Remover. See Special Tools and Equipment .

z

J 45851 Ball Joint Separator Protector Adaptors. See Special Tools and Equipment .

Removal Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

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

3. Remove the retaining bolt for the brake hose and the wheel speed sensor brackets.

4. Remove the wheel drive shaft. Refer to Wheel Drive Shaft Replacement in Wheel Drive Shafts.

5. Remove the nut at the upper ball joint. Discard the nut.

6. Disconnect the upper control arm from the steering knuckle using the J 43631 and the J 45851 . See

Special Tools and Equipment .

2004 Hummer H2

2004 SUSPENSION Front Suspension - Hummer H2

Fig. 14: Upper Control Arm
Courtesy of GENERAL MOTORS CORP.

7. Remove the upper control arm nuts and the adjustment cams.

8. Remove the upper control arm.

Installation Procedure

1. Install the upper control arm.

2004 Hummer H2

2004 SUSPENSION Front Suspension - Hummer H2

Fig. 15: Upper Control Arm
Courtesy of GENERAL MOTORS CORP.

2. Install the upper control arm bolts.

Tighten: Tighten the nuts to 190 N.m (140 lb ft).

3. Connect the upper control arm to the steering knuckle.

4. Install the wheel drive shaft. Refer to Wheel Drive Shaft Replacement in Wheel Drive Shafts.

5. Install the new nut to the upper ball joint stud.

Tighten: Tighten the nut to 50 N.m (39 lb ft).

6. Install the retaining bolts for the brake hose and wheel speed sensor brackets.

Tighten: Tighten the bolts to 9 N.m (80 lb in).

NOTE:

Refer to Fastener Notice in Cautions and Notices.

2004 Hummer H2

2004 SUSPENSION Front Suspension - Hummer H2