GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 36850 Transjel® Lubricant
    • J 45023 Control Main Filter Wrench

    Object Number: 1409689  Size: SH

    Caution: The torque converter housing/oil pump cover assembly dry weights are approximately 27 kg (60 lb). To help avoid personal injury and/or property damage:

       • Use caution when installing, removing, or moving the converter housing/oil pump cover assembly.
       • Get help when lifting the converter housing/oil pump cover assembly.
       • Assistance from a hoist or another person may be required.
       • Make sure lifting equipment can properly support the converter housing/oil pump cover assembly.

  1. Install 2 M10 x 1.5 guide bolts (5) into the transmission case (4).
  2. Install a new torque converter housing to case gasket (3) onto the transmission case.
  3. Attach a sling to the converter housing (1).
  4. Attach a hoist to the sling.
  5. Align the converter housing (1) with the guide bolts (5).
  6. Apply J 36850 or equivalent lubrication to the 3 seal rings on the rear of the oil pump cover assembly.
  7. Lower the converter housing/oil pump cover assembly (1) over the turbine shaft (2) and onto the transmission case (4).
  8. Notice: Transmission damage may occur if the torque converter housing is forced into position. If tapping does not cause the torque converter housing to drop into place, then one or more of the following components may be misaligned:

       • Output sun gear
       • Output sun gear spacer
       • Seal ring

  9. Tap the converter housing until the converter housing seats on the transmission case.
  10. Remove the sling.
  11. Remove 2 guide bolts (5) from the transmission case.
  12. Notice: Refer to Torque Converter Housing/Low and Reverse Clutch Housing Bolt Size Notice in the Preface section.


    Object Number: 1207590  Size: SH
  13. Install 18 bolts (1).
  14. Install one bolt (2).
  15. Notice: Refer to Fastener Notice in the Preface section.

  16. Install one bolt (3).
  17. Tighten
    Tighten bolts (1, 2, 3) to 56 N·m (42 lb ft).

    Notice: Refer to Component Fastener Tightening Notice in the Preface section.


    Object Number: 1217147  Size: SH

    Notice: Install the short-threaded end of the transmission external oil filter adapter into the converter housing. If the long-threaded end of the filter adapter is installed, the threads of the converter housing will be damaged.

  18. Install the short-threaded end of the transmission external oil filter adapter (6) into the converter housing by hand.
  19. Tighten
    Tighten the adapter to 30 N·m (22 lb ft.)

  20. Install the magnet (7) onto the transmission external oil filter adapter.
  21. Lubricate the gasket on the transmission external oil filter (8) with transmission fluid.
  22. Notice: Turning the transmission external oil filter more than ONE FULL TURN after gasket contact will damage the filter.

  23. Install the transmission external oil filter by hand until the gasket on the filter touches the converter housing.
  24. Using J 45023  (9) or by hand, turn the filter ONE FULL TURN ONLY.
  25. Install the line pressure test hole plug O-ring (4) onto the line pressure test hole plug (5).
  26. Install the plug.
  27. Tighten
    Tighten the plug to 12 N·m (108 lb in).

  28. Install the torque converter housing access hole cover (10).
  29. If present, install the O-rings (3) onto the transmission oil cooler pipe connectors (2).
  30. Install 2 transmission oil cooler pipe connectors (2).
  31. Tighten
    Tighten the connectors to 25 N·m (19 lb ft).