Upper Control Arm

REMOVAL
Follow removal steps outlined in illustration.

NOTE: Removal service points as follows:





1. Upper arm ball joint and knuckle disconnection (1).

CAUTION:
- Use the special tool to loosen the tie rod end mounting nut. Only loosen the nut; do not remove it from the ball joint.
- Support the special tool with a cord, etc. to prevent it from coming off.

INSPECTION
1. Check the bushings for wear and deterioration.
2. Check the upper arm for bends or damage.
3. Check all bolts for condition and straightness.
4. Check ball joint breakaway torque.





a. After shaking the ball joint stud several times, install the nut to the stud and use the special tool to measure the breakaway torque of the ball joint.
Standard value: 0.3-2.5 Nm (3-22 inch lbs.)
b. When the measured value exceeds the standard value, replace the upper arm assembly.
c. When the measured value is lower than the standard value, check that the ball joint turns smoothly without excessive play. If so, it is possible to use that ball joint.

INSTALLATION
Installation in reverse order as removal.

NOTE: Installation service points as follows:





1. Upper arm shaft assembly installation (4).
Install the upper arm shaft assembly at the angle shown in the illustration.





NOTE: If the upper arm shaft is installed at the above-mentioned angle, the reference dimension is determined in image.

NOTE: Operational steps after installation as follows:
- Front wheel alignment adjustment.