GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove and support the exhaust from the catalytic converters. Refer to Exhaust System Replacement .

  3. Object Number: 785397  Size: SH
  4. Remove the transmission mount lower mounting nuts.
  5. Support the transmission with a screw jack and block of wood.

  6. Object Number: 785394  Size: SH
  7. Remove the outer transmission mounting bolts.

  8. Object Number: 785390  Size: SH
  9. Remove the inner transmission mounting bolts.

  10. Object Number: 785386  Size: SH
  11. Remove the transmission support from the vehicle.

Installation Procedure


    Object Number: 785386  Size: SH
  1. Install the transmission support to the vehicle.

  2. Object Number: 785390  Size: SH
  3. Install the inner transmission support mounting bolts. Do not tighten at this time.
  4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 785394  Size: SH
  5. Install the outer transmission mounting bolts.
  6. Tighten
    Tighten all the support bolts to 60 N·m (44 lb ft).

  7. Remove the screw jack.

  8. Object Number: 785397  Size: SH
  9. Install the transmission mount lower mounting nuts.
  10. Tighten
    Tighten the nuts to 60 N·m (44 lb ft).

  11. Install the exhaust system to the catalytic converters. Refer to Exhaust System Replacement .
  12. Remove the support from the exhaust system.
  13. Lower the vehicle.