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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1061 (Front Drive Axle) >> Repair Instructions >> Differential Carrier Assembly Disassemble (9.25 Inch Axle) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Perform the following before disassembling the axle:

  1. Remove the fill plug from the axle.
  2. Remove the drain plug from the axle.
  3. Drain the axle lubricant.
  4. Inspect the oil and the case for metal chips.

    Determine the source of the metal chips, such as a broken gear or bearing cage.

  5. Check the ring gear backlash. Refer to Backlash Inspection and Adjustment .

This information can be used in order to determine the cause of the axle problem. The information will also help when setting up and preloading the differential case.

Determine the cause of the axle problem before disassembly, if possible.

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