Upper Control Arm

REMOVAL & INSTALLATION

1. Jack the vehicle up and support the body with stands.
2. Support the rear axle housing with a jack.
3. Disconnect the brake tube from the brake hose. Remove the clip and disconnect the hose from the body.
4. On models with ABS, remove the ABS warning harness bracket.
5. Disconnect the Load Sensing Proportioning Valve spring from the lower control arm.
6. Disconnect the shock absorber from the lower control arm.
7. To remove the lateral control rod, remove the nut and bolt. Extract the lateral control rod with the bushings.
8. To remove the lower control arm, disconnect the parking brake cable from the lower control arm.

   NOTE: The coil spring with insulators should be removed once the lower control arm is.

   1. Lower the rear axle insulator and lower insulator.
   2. Remove the two nuts, tow bolts and the lower control arm.
9. To remove the upper control arm, loosen the two nuts, bolts and extract the arm.

   Fig. 1: The upper control arm is secured with these two nuts

   To install:

10. Place the upper control arm and temporarily install the tow bolts and nuts.
11. Place the lower control arm and temporarily install the two bolts and nuts.
12. Install the coil spring on the lower control arm with the upper and lower insulators.
    1. Fit the lower end of the coil spring into the gap of the spring seat of the lower control arm.
    2. Jack up the rear of the axle housing.
13. Connect the parking brake cable to the lower control arm.
14. install the lateral control rod with bushings. Temporarily install the bolt and two nuts.
15. Connect the shock absorber to the lower control arm and tighten the new until the bolt protrudes 0.059 inch (1.54mm) or more.
16. Connect the LSPV spring to the lower control arm and tighten to 9 ft. lbs. (13 Nm).
17. On models with ABS, install the ABS wiring harness bracket.
18. Connect the brake hose to the body with the clip. attach the brake tube.
19. Lower the vehicle and stabilize the suspension. Bounce the vehicle up and down several times to stabilize the suspension.
20. Jack up the vehicle and support the rear axle housing with stands.
21. Tighten the two nuts of the upper control arm to 156 ft. lbs. (211 Nm). Tighten the two nuts on the lower control arm to, body side — 156 ft. lbs. (211 Nm), and axle housing side — 181 ft. lbs. (245 Nm).
22. Tighten the nuts of the lateral control rod on the body side to 156 ft. lbs. (211 Nm) and the axle housing side to 43 ft. lbs. (59 Nm).
23. Bleed the brake system.
24. Lower the vehicle.