GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2005 🢒 Bonneville 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T80-E 🢒 Transmission Mount Replacement - Left Side

Removal Procedure

    Object Number: 521892 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle In General Information.
  2. Support the powertrain assembly with a suitable jack.
  3. Remove the nut (1) securing the transmission mount to the transmission mount bracket.

    4. Object Number: 154972 Size: SH
  4. Lower the jack allowing the engine to lower slightly.
  5. Remove the bolt (1) and nut (4) securing the mount to the frame.
  6. Remove the 2 nuts (3) securing the mount to the frame.
  7. Remove the mount (2).

Installation Procedure

    Object Number: 154972 Size: SH
  1. Install the mount (2).
  2. Install the mount attaching bolt (1) and nut (4) to the frame.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the 2 nuts (3) securing the mount to the frame.

    4. Tighten
    Tighten the nuts to 70 N·m (52 lb ft).

  4. Raise the engine and transmission assembly into position.

    5. Object Number: 521892 Size: SH
  5. Install the nut (1) to the mount and mount bracket.

    6. Tighten
    Tighten the mount nut to 75 N·m (55 lb ft).

  6. Remove the engine assembly support jack.
  7. Lower the vehicle.