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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 953 (Transfer Case - NVG 261-NP2) >> Repair Instructions - Off Vehicle >> Cleaning and Inspection >> Rear Output Shaft

Rear Output Shaft

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.
    Fig 1: Locating Inspection Areas On Rear Output Shaft
    GM812467Courtesy of GENERAL MOTORS CORP.
  1. Clean the rear output shaft in cleaning solvent.
  2. Clean the rear output shaft oil galleries (2), and air dry.
  3. IMPORTANT: Do not attempt to smooth any roughness in the bearing journals.
  4. Inspect the input gear pilot bearing surface (1) and the drive gear sleeve journal surface (4) for the following conditions:
    • Scoring
    • Pitting
    • Brinelling
    • Excessive wear
  5. Inspect the rear output shaft splines (3) for damage or excessive wear. Witness marks at the location of the gears is normal.
  6. Replace the rear output shaft if any of the above conditions are found.