Express 4500 V8-6.0L (2010)
6. Remove and discard the upper ball joint retaining nut.
7. Disconnect the upper control arm from the steering knuckle using the J 43631 and J 45851.
8. Remove the upper control arm nuts and the adjustment cams.
9. Remove the upper control arm bolts.
10. Remove the upper control arm.
Installation Procedure
1. Install the upper control arm.
2. Install the upper control arm bolts.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
3. Install the upper control arm nuts and the adjustment cams and tighten to 175 Nm (129 lb ft).