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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1611 (Front Drive Axle) >> Repair Instructions >> Differential Case and Gears Inspection

Differential Case and Gears Inspection

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis 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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