Diesel Data: Automotive Repair

Rear Axle Upper Control Arm Replacement (Except RPO FE4)



Rear Axle Upper Control Arm Replacement (Except RPO FE4)

Tools Required

J 42188 Ball Joint Separator


Removal Procedure





1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service Intervals) .
2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (Service and Repair) .
3. Disconnect the wheel speed sensor electrical connector.
4. Disconnect the electronic suspension control sensor link. Refer to Electronic Suspension Rear Position Sensor Replacement (Electronic Suspension Rear Position Sensor Replacement) .




5. Separate the suspension knuckle (1) from the upper control arm using J 42188 .
6. Support the lower control arm with a jack stand.
7. Loosen the upper ball joint stud nut, but do not remove the nut.
8. Remove J 42188 and the ball joint stud nut (2) from the ball joint stud.




9. Remove the bolts retaining the upper control arm to the frame.
10. Remove the upper control arm from the vehicle.



Installation Procedure





1. Install the upper control arm to the vehicle.

Notice: Refer to Fastener Notice (Fastener Notice) .

2. Install the upper control arm mounting bolts and to the frame.

Tighten the upper control arm mounting bolts to 110 N.m (81 lb ft).

3. Install the suspension knuckle upper ball joint stud into the upper control arm.
It may be necessary to use an allen wrench to keep the ball joint stud from spinning while tightening the ball joint stud nut.
4. Install the upper ball joint stud nut.

Tighten the suspension knuckle ball joint stud nut to 30 N.m (22 lb ft) plus 195 degrees.





5. Connect the wheel speed sensor electrical connector.
6. Connect the electronic suspension control sensor link. Refer to Electronic Suspension Rear Position Sensor Replacement (Electronic Suspension Rear Position Sensor Replacement) .
7. Remove the jack stand from the lower control arm.
8. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (Service and Repair) .
9. Lower the vehicle.
10. Perform a rear wheel alignment. Refer to Wheel Alignment Measurement (Service and Repair) .