Lower

REMOVAL
1. Raise the vehicle on a hoist.

WARNING: THE ELECTRICAL POWER TO THE AIR SUSPENSION SYSTEM MUST BE SHUT OFF PRIOR TO HOISTING, JACKING OR TOWING AN AIR SUSPENSION VEHICLE. THIS CAN BE ACCOMPLISHED BY TURNING OFF THE AIR SUSPENSION SWITCH LOCATED IN THE REAR JACK STORAGE AREA. FAILURE TO DO SO CAN RESULT IN UNEXPECTED INFLATION OR DEFLATION OF THE AIR SPRINGS OR SHOCKS, WHICH CAN RESULT IN SHIFTING OF THE VEHICLE DURING THESE OPERATIONS.

2. Remove the wheel and tire assembly.





3. Remove the stabilizer link nut, washer and bushing.





4. Remove the front shock absorber-to-front suspension lower arm nuts.
5. Remove the torsion bar.





6. Remove the lower ball joint castellated nut.
1. Remove the lower ball joint cotter pin.
2. Remove the lower ball joint castellated nut.





7. Use the Pitman Arm Puller to separate the front suspension lower arm from the front wheel knuckle/spindle.





8. Remove the front suspension lower arm.
1. Remove the front suspension lower arm bolts and nuts.
2. Remove the front suspension lower arm.

CAUTION: On 4WD/AWD vehicles, support the front suspension arm bushing joint, axle shaft and front wheel knuckle before separating the front wheel knuckle from the front suspension lower arm. Failure to do so can cause damage to the front axle shaft assembly.

INSTALLATION





1. Install the front suspension lower arm.
1. Position the front suspension lower arm to the front suspension crossmember.
2. Install the pivot bolts and nuts and tighten until snug.

NOTE:
- Tighten the front suspension lower arm pivot bolts and nuts until snug. Do not tighten to specification until the installation procedure is complete.
- Inspect the front suspension lower arm ball joints and boot seals for damage.





2. Connect the front suspension lower arm to the front wheel knuckle/spindle.
1. Position the lower ball joint into the front wheel knuckle/spindle.
2. Install the new castellated nut.
3. Install a new cotter pin.

CAUTION: Install the cotter pin into the lower ball joint from outboard to inboard with the fingers bent together at a right angle. Failure to do so will cause damage to the wheel and tire assembly.





3. Install the front shock absorber-to-front suspension lower arm nuts.





4. Install the stabilizer link bushing, washer, and nut.
5. Install the torsion bar.

NOTE: Whenever the torsion bar or torsion bar adjuster is removed, the vehicle ride height must be checked.

6. Install the tire and wheel assembly.
7. Lower the vehicle.

NOTE: If equipped with air suspension, reactivate the system by turning on the air suspension switch.





8. Tighten the front suspension lower arm nuts.
9. Inspect and adjust the front end alignment.