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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 946 (Front Drive Axle) >> Repair Instructions >> Differential Case and Gears Inspection

Differential Case and Gears Inspection

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect the following components for excessive wear and/or fit:
    • The pinion gear shaft
    • The thrust washers
    • The differential case for wear, cracks and scoring
    • The fit of the pinion gear shaft in the differential case
    • The fit of the differential side gears in the differential case
    • The fit of the side gears on the axle shafts
  2. Inspect the teeth of the pinion gears and the differential side gears for the following conditions:
    • Wear
    • Cracks
    • Scoring
    • Spalling
  3. Replace any worn or poor fitting components as necessary.
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