Full-Time Four-Wheel Drive

REMOVAL PROCEDURE

Important: Before adjusting the camber and the caster, remove the knockout from each frame bracket connecting the upper control arm to the vehicle.

1. Raise the vehicle. Support the vehicle with safety stands.
2. Support the lower control arms with a jack or with safety stands.

Important: The jack or the stand must remain under the lower control arm torsion bar seat during the removal and the installation procedure in order to retain the lower control arm position.

3. Remove the tire and the wheel assembly. Refer to WHEEL REMOVAL in TIRES AND WHEELS.
4. Remove the following components from the upper control arm:
^ The upper control arm nuts (2)
^ The upper control arm bolts (6)
^ The adjusting cams (1). Note the position of the adjusting cams (lobes down) and the adjusting cam bolts before removal.
5. Reposition the upper control arm (4) in order to access the frame brackets (5).
6. Remove the frame bracket knockout using a pry bar. If the knockout does not break free completely, remove any burrs with an appropriately sized die grinder. Repeat the procedure on the other upper control arm frame bracket.

INSTALLATION PROCEDURE
1. Install the upper control arm (4) to the frame brackets (5).
2. Install the adjusting cams (1) with the lobes down.
3. Install the adjusting cam bolts (6).
4. Install the nuts (2). Hand tighten the nuts.
5. Install the tire assembly and the wheel assembly. Wheel Installation in Tires and Wheels. Repeat the procedure on opposite control arm assembly. Proceed to align the vehicle.
6. Make the caster and the camber adjustments by rotating the offset cam bolt (6) and the cam (1) in the slotted frame bracket (5) in order to reposition the control arm (4).
7. In order to adjust the caster and the camber, loosen the upper control arm to frame attaching bolts.
8. Rotate the cam (1) by rotating the bolt head (6).
9. In order to adjust the camber, use the following procedure:
9.1. Hold the cam bolt (6) and loosen the nut (2).
9.2. Turn the cam bolt in order to obtain change equal to one half of the needed correction.
9.3. Hold the cam bolt (6) in this position in order to maintain the setting.
9.4. Obtain the remaining one half of the needed correction by repeating steps 1 through 3 to the other cam bolt (7).
9.5. Turn the cam lobe in the same direction.
9.6. When this camber adjustment is followed the caster setting will not be affected.
10. In order to adjust the caster, use the following procedure:
10.1. Note the camber reading.
10.2. Hold the front cam bolt (6) and loosen the nut (2).
10.3. Turn the front cam bolt in order to obtain a change equal to 1/4 of the desired caster change. At the front cam bolt, a positive camber change produces a positive caster change and a negative camber change produces a negative caster change.
10.4. Hold the cam bolt (6) in this position while tightening the nut (2) in order to maintain setting.
10.5. Hold the rear cam bolt (6) and loosen the nut (2).
10.6. In order to return the camber to the setting that you noted earlier, turn the cam bolt (6) by turning the cam (1) lobe in the opposite direction.
10.7. Check the caster setting. Repeat the above procedure if not within specifications.

NOTICE: Always use the correct fastener in the proper location. When you replace a fastener, use ONLY the exact part number for that application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases, or other corrosion inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque and joint clamping force, and may damage the fastener. When you install fasteners, use the correct tightening sequence and specifications. Following these instructions can help you avoid damage to parts and systems.

10.8. When adjustments are complete, hold the cam bolt (6) head in order to ensure the cam position does not change while tightening the nut.

Tighten
Tighten the nut to 110 Nm (81 ft. lbs.).