Lower Control Arm Ball Joint Inspection
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. 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.