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. Caution: Refer to Fastener Caution in the Preface section.


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

  4. Object Number: 1398179  Size: SH
  5. Install the transmission mount to transmission bolts and tighten to 55 N·m (41 lb ft).
  6. Install the battery tray. Refer to Battery Tray Replacement.
  7. Remove the engine support.