Lower Control Arm Ball Joint Inspection
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools
J 8001 Dial Indicator
For equivalent regional tools, refer to Special Tools .
- The vehicle must rest on a level surface.
- The vehicle must be stable. Do not rock the vehicle on the floor stands.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
- Clean and inspect the ball joint seal for cuts or tears. If the ball joint seal is damaged, replace the ball joint or the lower control arm as applicable for this vehicle.
- Support the lower control arm with a floor stand as far outboard as possible and raise the suspension until the lower control arm moves 25 mm (1 in).
- Install the J 8001 dial indicator, or suitable dial indicator, to measure the vertical lash in the ball joint.
- Lift the knuckle towards the lower control arm and record the dial indicator measurement.
- If the dial indicator reading is more than 0.50 mm (0.020 in), replace the ball joint or the lower control arm as applicable for this vehicle.
NOTE:
CAUTION:
Do not pry in such a way that the ball joint seal is contacted. Damage to the seal may result.