Sierra Classic 2500 4WD V8-6.0L (2007)
Ball Joint: Testing and Inspection
Ball Joint Inspection (Lower Ball Joint)
Ball Joint Inspection (Lower Ball Joint)
Tools Required
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J 8001 Dial Indicator Set
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. With the wheel and tire on the vehicle, lift the suspension corner by hand to determine if any looseness is present. If vertical free play is
experienced proceed with the following instructions.
3. Remove the wheel and tire.
4. Clean and inspect the ball joint seals for cuts or tears. If the ball joint seals are damaged, replace the ball joint. Refer to Lower Ball Joint
Replacement (Coil Spring Suspension) Lower Ball Joint Replacement (Torsion Bar Suspension).
5. Install and position the dial indicator from J 8001 against the end of the ball joint.
6. Important:
Do not pry between the lower arm and the wheel drive shaft boot or in such a manner that the ball joint seal is contacted. Damage to the wheel
drive shaft boot will result (4WD).
Gently lift or pry the suspension upward then let it settle.
7. The dial indicator reading should be no more than 2 mm (0.079 inch). If the reading is out of specification, replace the ball joint.
