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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 52 (Transfer Case - NVG 149-NP3 - Overhaul) >> Repair Instructions >> Cleaning and Inspection >> Input Gear

Input Gear

WARNING: This page is about a different variant/trim than selected.
  1. Clean the input gear in cleaning solvent and air dry.
  2. Inspect the input bearing (1) for the following conditions:
    • Pitted
    • Wear
    • Corrosion
      • Fig 1: Locating Inspection Areas On Input Gear
      GM805648Courtesy of GENERAL MOTORS CORP.
  3. Replace the input bearing if any of the above conditions are found. Refer to Transfer Case Disassemble and Transfer Case Assemble .
  4. Inspect the input gear seal surface (2) for pitting or excessive wear.
  5. Inspect the input gear thrust surface (3) for wear or damage.
  6. Inspect the cup plug inside of the input gear for leaking.
  7. Replace the input gear if any of the above conditions are found.
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