Rear Lower

Arm-Lower

Rear Suspension:

Special Tool(s)

Removal

CAUTION: fasteners are critical parts because they affect the performance of vital components and their failure can result in major service expense. They must be replaced with the same part number or an equivalent part if replacement is necessary. Do not use a replacement part of lesser quality or substitute design. Torque values must be used as specified during reassembly to ensure proper retention of these parts.





Vehicles equipped with air suspension

1. WARNING: The electrical power to the air suspension system must be turned off prior to hoisting, jacking or towing an air suspension vehicle. Failure to do so can result in unexpected inflation or deflation of the air springs, which can result in shifting of the vehicle during these operations.

Turn the air suspension service switch off.





All vehicles
2. Mark the rear suspension shock absorber relative to the protective sleeve with the vehicle in a static, level ground position (curb height).
3. Raise and support the vehicle.
4. Remove the wheel and tire assembly.
5. Use the special tool 014-00942 or equivalent to support the rear axle.

Vehicles equipped with air suspension

6. WARNING: Do not remove an air spring under any circumstances when there is air pressure in the Or spring. Do not remove any components supporting an air spring without exhausting the air.

Release the air pressure from the air springs.





All vehicles
7. Remove and discard the rear suspension lower arm pivot bolt and nut from the axle bracket.





8. Remove and discard the rear suspension lower arm pivot bolt and nut from the frame bracket. Remove the rear suspension lower arm.

Installation





All vehicles
1. NOTE: The rear suspension lower arm bolts must be tightened with the vehicle at curb height.

NOTE: The rear suspension lower arms are interchangeable from side-to-side with "OUTBOARD" stamped on the side of the arm for positioning during installation.

Position the rear suspension lower arm to the frame bracket and install a new pivot bolt and nut. Insert the bolt so the nut faces inboard. Do not tighten at this time.





2. Position the rear suspension lower arm to the axle bracket and install a new pivot bolt and nut. Insert the bolt so the nut faces outboard. Do not tighten at this time.





3. Raise the axle assembly to the position that compresses the shock absorber to the previously established alignment mark (curb height).





4. Tighten the rear suspension lower arm to the Came bracket pivot bolt.





5. Tighten the rear suspension lower arm to axle bracket pivot bolt.
6. Remove the special tool 014 00942 or equivalent.
7. Lower the vehicle.





Vehicles equipped with air suspension
8. Turn the air suspension service switch on.
9. Inflate the air springs.