Upper Control Arm Ball Joint Replacement (Z85, ZQ8)

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 (Service and Repair).
2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (Service and Repair).
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 (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 (Fastener Caution).

3. Install the nuts to the bolts and tighten 16 Nm (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:

* First Pass 40 Nm (30 lb ft)
* Final Pass plus 95 degrees

6. Connect the wheel speed sensor brackets.
7. Install the wheel speed sensor bracket bolt and tighten to 20 Nm (15 lb ft).
8. Connect the front brake hose to the upper control arm. Refer to Front Brake Hose Replacement (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 (Service and Repair).
11. Lower the vehicle.
12. Verify the wheel alignment. Refer to Wheel Alignment Specifications (Wheel Alignment Specifications).