GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 41230 Transmission Support Fixture
    • J 41230-TEM Drill Template
    • J 3289-20 Transmission Holding Fixture Base

For equivalent regional tools, refer to Special Tools.


    Object Number: 20158  Size: SH

    Warning: To reduce the possibility of personal injury or transmission damage, make sure, when doing the next step, that all of the bolts for the support fixture are installed as shown, and that the bolts are tightened to 11 N·m (98 lb in).

    Note: J 41230 support fixture should be updated using J 41230-TEM drill template due to transmission mounting changes.

  1. Install the J 41230 support fixture transmission support fixture onto the transmission.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the support fixture bolts. Tighten the support fixture bolts to 11 N·m (8 lb ft).
  4. Install the transmission and the support fixture onto the J 3289-20 holding fixture base .
  5. Position the transmission with the side cover facing down.
  6. Insert the pin into the J 3289-20 holding fixture base in order to lock the unit into place.