GM Service Manual Online
For 1990-2009 cars only

    Object Number: 773161  Size: SH
  1. Clean the transmission case cover and air dry. Ensure solvent is removed from the fluid passages and bearings.
  2. Inspect the front differential transfer drive gear assembly rear bearing assembly (623) for the following conditions:
  3. • Bent cages
    • Brinneling
    • Pitting
    • Flaking
  4. Inspect the input shaft support bearing (625) for the following conditions:
  5. • Bent cages
    • Brinneling
    • Pitting
    • Flaking
  6. Inspect the transmission cover sealing surface for damage.
  7. Inspect the 1-2 reverse clutch piston bore for wear or damage.
  8. Inspect the lugs for the 1-2 reverse clutch plates for grooves that will prevent the plates for sliding.
  9. Replace the transmission case cover if any of the above conditions are found.