Upper Control Arm Replacement

Upper Control Arm Replacement

Tools Required

- J-42188-B Ball Joint Separator

Removal Procedure

1. Raise and support the vehicle.
2. Remove the tire and wheel.






3. Remove the retaining bolt for the brake hose and the wheel speed sensor brackets.
4. Remove the nut at the upper ball joint. Discard the nut.






5. Disconnect the upper control arm from the steering knuckle using the J-42188-B.






6. For 15-Series 2WD/4WD and 25/35 Series 2WD, remove the control arm using the following procedure:
6.1. Remove the upper control arm nuts and the adjustment cams (2).
6.2. Remove the upper control arm bolts (4).
6.3. Remove the upper control arm.






7. For the 25/35 Series 4WD, remove the control arm using the following procedure:
7.1. Remove the upper control arm nuts and adjuster cams (2).
7.2. Remove the upper control arm bolts (4).
7.3. Remove the upper control arm.

Installation Procedure

1. Install the upper control arm.






2. Install the upper control arm bolts (4), the 25/35 Series for the 4WD.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Install the upper control arm nuts and the adjustment cams (2), the 25/35 Series for the 4WD.

- Tighten the nuts to 190 Nm (140 lb ft).

4. For the 25/35 Series 4WD, install the control arm using the following procedure:
4.1. Install the upper control arm.
4.2. Install the upper control arm bolts (4).
4.3. Install the upper control arm nuts and adjuster cams (2).






5. For 15 Series 2WD/4WD and 25/35 Series 2WD, install the control arm using the following procedure:
5.1. Install the upper control arm.
5.2. Install the upper control arm bolts (4).
5.3. Install the upper control arm nuts and the adjustment cams (2).
6. Connect the upper control arm to the steering knuckle.
7. Install a new nut to the upper ball joint stud.

- Tighten the nut to 50 Nm (37 lb ft).






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

- Tighten the bolts to 9 Nm (80 lb in).

9. Install the tire and wheel.
10. Remove the safety stands.
11. Lower the vehicle.
12. Verify the wheel alignment.