For 1990-2009 cars

## Upper Control Arm Ball Joint Replacement 2WD, Z85, ZQ8

#### Special Tools

J-42188-B Ball Joint Separator

### Removal Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
3. Support the lower control arm with a suitable jack stand.
4. Disconnect the front brake hose from the upper control arm. Refer to Front Brake Hose Replacement.
5. Remove the wheel speed sensor bracket bolt.
6. Disconnect the wheel speed sensor brackets.
7. Remove the nut from the upper ball joint. Discard the nut.
8. Disconnect the ball joint from the steering knuckle using the J-42188-B .
9. Remove the ball joint nuts and bolts from the upper control arm. Discard the nuts and bolts.
10. Remove the ball joint from the upper control arm.

### Installation Procedure

1. Install the ball joint to the upper control arm.
2. Install the replacement bolts to the upper control arm.

Caution: Refer to Fastener Caution in the Preface section.

3. Install the nuts to the bolts and tighten 16 N·m (12 lb ft).
4. Connect the ball joint to the steering knuckle.
5. Install the new nut to the upper ball joint and tighten to 100 N·m (74 lb ft).
6. Connect the wheel speed sensor brackets.
7. Install the wheel speed sensor bracket bolt and tighten to 20 N·m (15 lb ft).
8. Connect the front brake hose to the upper control arm. Refer to Front Brake Hose Replacement.
9. Remove the support from the lower control arm.
10. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
11. Lower the vehicle.
12. Verify the wheel alignment. Refer to Wheel Alignment Specifications.

## Upper Control Arm Ball Joint Replacement 4WD, 2WD, Z71

#### Special Tools

J-42188-B Ball Joint Separator

### Removal Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
3. Support the lower control arm with a suitable jack stand.
4. Disconnect the front brake hose from the upper control arm. Refer to Front Brake Hose Replacement.
5. Remove the wheel speed sensor bracket bolt.
6. Disconnect the wheel speed sensor brackets.
7. Disconnect the upper control arm from the ball stud by removing the retention nuts. Discard the nuts.
8. Remove the nut from the upper ball joint. Discard the nut.
9. Disconnect the ball joint from the steering knuckle using the J-42188-B .
10. Remove the ball joint from the steering knuckle.

### Installation Procedure

1. Install the ball joint to the steering knuckle.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the new nut to the upper ball joint and tighten to 75 N·m (55 lb ft).
3. Connect the upper control arm to the ball stud by installing the retention nuts. Tighten the nut to 47 N·m (35 lb ft).
4. Connect the wheel speed sensor brackets.
5. Install the wheel speed sensor bracket bolt and tighten to 20 N·m (15 lb ft).
6. Connect the front brake hose to the upper control arm. Refer to Front Brake Hose Replacement.
7. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
8. Remove the lower control arm support.
9. Lower the vehicle.
10. Verify the wheel alignment. Refer to Wheel Alignment Specifications.