Visual/Physical Inspection

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the system for the following:
- Loose or missing fasteners
- Obvious damage or conditions which may cause the symptom.
Check the system for proper operation. Refer to Locking Differential Diagnosis .