GM Service Manual Online
For 1990-2009 cars only

    Object Number: 749472  Size: SH
  1. Rotate the transmission case assembly so that the torque converter housing side is facing up.
  2. Install the 1-2 reverse internal gear rear thrust bearing assembly (595) with the flat side up.
  3. Important: A shim (596) is available for proper endplay for the front differential transfer drive gear assembly. Early production transmission did not use the shim.

  4. Install the 1-2 reverse internal gear shim (596) without any markings. Correct shim selection is performed during the front differential transfer drive gear assembly installation.
  5. Install the 1-2 reverse internal gear front thrust bearing assembly (593) with the flange up.

  6. Object Number: 749470  Size: SH
  7. Install the 1-2 reverse internal gear thrust washer (590) to the lower side of the 1-2 reverse carrier gear assembly (591).
  8. Install the 1-2 reverse carrier gear assembly (591) into the 1-2 reverse internal gear (594). The carrier assembly will be flush to the 1-2 reverse internal gear.
  9. Install the 1-2 reverse carrier thrust washer (590) on top of the 1-2 reverse carrier gear assembly (591).