Upper Arm

Upper Arm





Removal

CAUTION: Suspension fasteners are critical parts because they affect performance of vital parts and systems and their failure can result in major service expense. A new part with the same part number must be installed if installation becomes 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.

CAUTION: Orientation of the suspension fasteners is important. Make sure the fasteners are installed in the same direction as they were in when removed.





1. Measure the distance from the center of the hub to the lip of the fender with the vehicle in a level, static ground position (curb height).
2. With the vehicle in NEUTRAL, position it on a hoist.
3. Position a suitable Jack under the wheel knuckle and raise the suspension until the distance between the center of the hub and the lip of the fender is equal to the measurement taken in Step 1.
4. Remove and discard the upper arm outboard nut and bolt.

5. NOTE: The inboard nut that is installed at the assembly plant is a flag nut. This flag nut is used to set and maintain the rear camber settings. Discard the flag nut and install a non-flag nut to allow the rear camber to be adjusted.

Remove and discard the upper arm inboard bolt and flag nut and remove the upper arm.

Installation
1. Position the upper arm and install a new inboard bolt and non-flag nut.
^ Tighten to 250 Nm (185 ft. lbs.).

2. CAUTION: The upper arm outboard bolt must be installed with the bolt head toward the front of the vehicle or wheel damage can occur.





Install a new outboard bolt and nut with the bolt head toward the front of the vehicle.
^ Tighten to 275 Nm (203 ft. lbs.).

3. Lower the suspension and remove the Jack.
4. Check and, if necessary, align the rear end.