Lock-Up Shift Assembly

WARNING: This page is about a different car, the 2005 GMC Yukon XL and 2005 GMC Yukon. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Disassembled View Of Lockup Shift Assembly

Courtesy of GENERAL MOTORS CORP.

If necessary, disassemble the lockup shift assembly. Refer to Transfer Case Disassemble and Transfer Case Assemble .
Clean the lockup shift assembly components in cleaning solvent and air dry.
Inspect the lockup shift hub engagement teeth for the following conditions:
- Chipped teeth
- Excessively worn gear surfaces
  Slight wear marks are normal.
- Debris embedded in the root of the teeth
Replace the lockup shift assembly if it is faulty. The lockup shift assembly components are not serviced separately.