Lower Arm

Lower Arm









Removal

NOTICE: Suspension fasteners are critical parts because they affect performance of vital components and systems and their failure may result in major service expense. New fasteners must be installed with the same part number or an equivalent part if installation is necessary. Do not use a replacement part of lesser quality or substitute design. Torque values must be used as specified during reassembly to make sure of correct retention of these parts. Orientation of the fasteners is also important on all rear suspension arms. Make sure the fasteners are installed in the same direction as they were in when removed.

1. For reference during the installation procedure, measure the distance from the lip of the fender to the center of the wheel hub with the vehicle in a static level ground position.





2. WARNING: If equipped with fire suppression system, refer to Fire Suppression System for Important Safety Warnings. Failure to follow this instruction may result in serious personal injury. Description and Operation

Remove the wheel and tire. For additional information, refer to Wheels and Tires Removal and Replacement.

3. Remove and discard the lower arm-to-axle nut and bolt.

4. Remove the lower arm-to-frame bolt, flagnut and the lower arm.
- Discard the flagnut and bolt.

Installation

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

Position the lower arm and loosely install the new lower arm-to-frame bolt and flagnut.

2. Loosely install the new lower arm-to-axle nut and bolt.





3. Before tightening the fasteners, use a suitable jack to raise the suspension until the distance between the lip of the fender and the center of the wheel hub is equal to the measurement taken in the removal procedure.

4. Tighten the lower arm-to-frame nut to 150 Nm (111 lb-ft).

5. Tighten the lower arm-to-axle nut to 150 Nm (111 lb-ft).

6. Install the wheel and tire. For additional information, refer to Wheels and Tires Removal and Replacement.

7. WARNING: If the vehicle is equipped with a fire suppression system, repower the system. For important safety warnings and procedures, refer to Fire Suppression System. Failure to follow these instructions may result in serious personal injury Description and Operation.

If equipped with a fire suppression system, repower the system.