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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Drive Axles) >> Overhaul >> Differential Case >> Cleaning Differential Housing

Cleaning Differential Housing

WARNING: This page is about a different car, the 2003 Chevrolet Corvette and 2002 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clean the differential carrier in solvent. Inspect for the following:
    • Damage to threaded bolt holes
    • Broken flanges
    • Restrictions within the internal oil passages
    • Damaged case or cover sealing surfaces
    • Damage to the "O" ring seal grooves
    • Porosity
    See Figure.
  2. Clean the covers in solvent. Inspect the covers for the following:
    • Damage to the "O" ring seal grooves
    • Damage to the axle shaft oil seal bores
    • Restrictions within the internal oil passages
    • Porosity
    • Dents or damage to the exterior of the cover - rear that may create interference with the pinion shaft
  3. Clean the carrier seal plate in solvent. Inspect for the following: Cracks or other damage A damaged oil seal bore A damaged "O" ring seal groove.
  4. Clean the pinion components in solvent. Inspect for the following:
    • Damage to the nut threads or locking area
    • Worn or scored bearings
    • The pinion housing/cage for damaged bolt holes, broken flanges, restrictions within the oil passages, worn or loose bearing races and/or race bores
    • The pinion shaft for damaged threads, worn splines, or worn or scored gear teeth
    See Figure.
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