Tools Required

J 38794 Knockout Removal Tool

Important: As originally installed, the upper control arm cannot be adjusted for caster or camber. If the catser and camber is out of specifications, the caster and camber can be set to the right specifications.

1. Raise the vehicle. Suitably support the vehicle with safety stands.




Important: The safety stands must remain under the lower control arms during the removal and the installation in order to retain the lower control arm position.

2. Support the lower control arms with a suitable jack stand.
3. Remove the tire and the wheel from the vehicle. Refer to Tire and Wheel Removal and Installation



4. Remove the upper control arm from the frame bracket. Refer to Upper Control Arm Replacement
5. Move the upper control arm up and to the side to gain acces to the frame bracket.
6. Install the knockout tool using the J 38794

•	Do not distort the frame bracket when removing the knockout.

•	The forward bracket requires the bridge to be installed between the legs of the bracket due to access problems.

•	Apply extreme pressure lubricant to the threads of the T-bolt and insert the bolt through the knockout hole in the bracket support.

•	Insert the bolt through the knockout hole in the bracket support.

Notice: Do not subject the tool to more than 100 N·m (75 lb ft) torque. Exceeding the recommended torque may damage the tool and/or the bracket.

7. Remove any wax coatings in the knockout area in order to make the stamped outline visible for removing.
8. Assemble the following parts in order:

•	The bridge.

•	The bearing with the chamfered side out.

•	The washer.

•

The nut.

9. The T-bolt head and the bridge must line up horizontally with the knockout. The bridge should span the knockout without interfering with the knockout procedure.
10. Tighten the T-bolt head against the knockout by turning the nut at the opposite end using a socket and torque wrench.
11. An open end wrench or adjustable wrench may be needed in order to prevent the T-bolt from losing the horizontal alignment with the knockout.
12. If the torque limit has been met and the knockout does not break free, use a die grinder to remove the knockout.
13. Remove the J 38794
14. Repeat the same procedure for the other upper control arm frame bracket knockout.

1. Install the upper control arm into the frame brackets. Refer to Upper Control Arm Replacement
2. Install the bolts ,cams and washers to the control arm. Partially tighten the nuts in order to allow alignment.
3. Install the tire and the wheel. Refer to Tire and Wheel Removal and Installation
4. Install the alignment heads.



5. Remove the jack stands from the vehicle.
6. Lower the vehicle.
7. Align the front end. Refer to Front Caster and Camber Adjustment or Front Toe Adjustment .