Front Lower Control Arm - Installation

INSTALLATION

WARNING: All pressurized air suspension components contain high pressure air (up to 220 psig). Use extreme caution when inspecting for leaks. Wear safety goggles and adequate protective clothing when inspecting or servicing the air suspension system. A sudden release of air under this amount of pressure can cause personal injury or death.

WARNING: Support the vehicle by supplemental means before performing any work on the air suspension system to prevent the vehicle from changing height. Before any given component is to be serviced it must be deflated. Servicing the air suspension system without supplemental support, or with pressure in the specific component, can cause personal injury or death.






NOTE: If equipped with four wheel drive, position the half shaft if removed with the lower control arm.

1. Position the lower control arm to the cradle.
2. Install the lower control arm rear pivot vertical bolt and nut (1). Do not tighten.
3. Install the lower control arm front pivot nut and bolt (4). Do not tighten.





4. Install the shock clevis bracket to lower control arm nut/bolt (6). Do not tighten.
5. Install the stabilizer link (7) to lower control arm nut. Do not tighten.
6. Install the knuckle Front Steering Knuckle - Installation.





7. Support the outside of the lower control arm with a suitable holding fixture, and raise to normal ride height.
8. Tighten the lower control arm rear pivot vertical bolt and nut (1) to 220 Nm (162 ft. lbs.), and tighten the lower control arm rear pivot horizontal bolt and nut (2) to 90 Nm (66 ft. lbs.).
9. Tighten the lower control arm front pivot nut and bolt (4) to 120 Nm (89 ft. lbs.)





10. Tighten the shock clevis bracket to lower control arm nut/bolt (6) to 235 Nm (173 ft. lbs.).
11. Tighten the stabilizer link (7) to lower control arm nut to 122 Nm (90 ft. lbs.).
12. Install the tire and wheel assembly Service and Repair.
13. Remove the supports and lower the vehicle.
14. If equipped with air suspension, with a scan tool, using the routines under the Air Suspension Control Module (ASCM), perform the following:
- Fill Spring From Reservoir/Complete Fill on the air suspension spring on the side where the lower control arm was installed.
- Run the Air Mass Calculation routine on the air suspension system.
- If necessary, add to the system or deflate to atmosphere using the ASCM routines, then repeat the Air Mass Calculation routine again until system responds with Air Mass OK (188 - 216 bar-liters).
- Enable the air suspension system.

15. If equipped with air suspension, perform the ASCM Verification Test ASCM Verification Test.
16. Perform wheel alignment Service and Repair.