GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Support the engine.
  2. Remove the battery tray. Refer to Battery Tray Replacement .

  3. Object Number: 1398179  Size: SH
  4. Remove the transmission mount to transmission bolts.

  5. Object Number: 1398178  Size: SH
  6. Remove the transmission mount to frame rail bolts.
  7. Remove the mount from the engine.

Installation Procedure

  1. Position the transmission mount on the frame rail.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1398178  Size: SH
  3. Install the transmission mount to frame rail bolts.
  4. Tighten
    Tighten the bolts to 37 N·m (27 lb ft).


    Object Number: 1398179  Size: SH
  5. Install the transmission mount to transmission bolts.
  6. Tighten
    Tighten the bolts to 55 N·m (41 lb ft).

  7. Install the battery tray. Refer to Battery Tray Replacement .
  8. Remove the engine support.