C 3500 Truck 2WD V8-6.6L DSL Turbo VIN 1 (2002)
Wheel Bearing: Testing and Inspection
Wheel Bearings Diagnosis (Sealed)
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Tools Required
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J 8001 Dial Indicator
The following procedure describes how to inspect the wheel bearing/hub for excessive looseness. If you are inspecting the wheel bearing/hub for
excessive runout, refer to Tire and Wheel Assembly Runout Measurement - On-Vehicle.
Important: If you are inspecting the FRONT wheel bearing/hub, support the front of the vehicle by the lower control arms in order to load the lower
ball joint.
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Mount and secure the J 8001 to a stand.
3. Ensure that the J 8001 contacts the vertical surface of the wheel as close as possible to the top wheel stud.
4. Push and pull on the TOP of the tire.
5. Inspect the total movement indicated by the J 8001.
6. If the measurement exceeds 0.127 mm (0.005 inch), replace the wheel bearing/hub.
