GM Service Manual Online
For 1990-2009 cars only

    Object Number: 749506  Size: SH
  1. Rotate the transmission assembly so the I.D. tag is facing up.
  2. Remove the output gear retaining ring (48) from the output gear assembly (12).

  3. Object Number: 749507  Size: SH
  4. Remove the output gear assembly (12) from the transmission case assembly.
  5. Important: Do not disassemble the output drive gear.

  6. Clean the output gear in solvent and air dry. Ensure the solvent is removed from the bearing.
  7. Inspect the bearings feel for roughness or noise.
  8. Inspect the gear teeth for:
  9. • Excessive wear
    • Chips or broken teeth
    • Metal embedded in the teeth
  10. Replace the output drive gear as an assembly if any of the above conditions are found.