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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 53 (Transfer Case - NVG 246-NP8 - Overhaul) >> Repair Instructions >> Cleaning and Inspection >> Rear Output Shaft

Rear Output Shaft

WARNING: This page is about a different variant/trim than selected.
  1. Clean the rear output shaft in cleaning solvent.
  2. Clean the rear output shaft oil galleries (1) and air dry.
    3. IMPORTANT: Do not attempt to smooth any roughness in the bearing journals.
    Fig 1: Identifying Rear Output Shaft Inspection Areas
    GM857317Courtesy of GENERAL MOTORS CORP.
  3. Inspect the input gear pilot bearing surface (2) and the clutch housing bearing surface (3) for the following conditions:
    • Scoring
    • Pitting
    • Brinelling
    • Excessive wear
  4. Inspect the splines on the rear output shaft for damage or excessive wear. Witness marks at the location of the gears are normal.
  5. Replace the rear output shaft if any of the above conditions are found.
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