Input Gear
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2005 GMC Yukon XL, 2005 GMC Yukon, 2005 GMC Sierra, 2005 GMC Cab & Chassis Sierra, and 2005 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
- Clean the input gear, with pilot bearing, in cleaning solvent.
- Air dry and ensure all solvent is removed from the pilot bearing.
- Inspect the pilot bearing (1) for the following conditions:
- Pitted
- Wear
- Corrosion
- Replace the input gear pilot bearing if any of the above conditions are found. Refer to Transfer Case Disassemble and Transfer Case Assemble .
- Inspect the input gear engagement teeth (2) for chips.
- Inspect the input gear for broken or damaged planetary teeth (3).
- Inspect the input gear for debris embedded in the root of the teeth.
- Inspect the input gear seal surface (4) for pitting or excessive wear.
- Replace the input gear if any of the above conditions are found.
- Inspect the input gear thrust washers for excessive wear or scoring.
- Replace the thrust washers if they are faulty.