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Noise in Addition to Normal Clutch Engagement

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.
Noise in Addition to Normal Clutch Engagement

Checks Action
The clutch plates are broken Replace the clutch plates. Refer to the following:
The thrust block is broken Replace the thrust block with a block of identical thickness. Check closely for other damage. Refer to Locking Differential Disassemble (8.6, 9.5 Inch Axles)  and Locking Differential Assemble (9.5 Inch Axle) .
The case is damaged Replace the unit. Refer to Differential Replacement .
The differential gears are broken Replace the gears. Refer to the following:
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