GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 DTS 🢒 Transmission 🢒 Automatic Transmission - 4T80-E 🢒 Transmission Rear Mount Bracket Replacement

Removal Procedure

    Object Number: 521323 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Support the engine assembly with a suitable jack.
  3. Remove the nuts (1) securing the transmission mount (2) to the transmission mount bracket (3).

    4. Object Number: 793606 Size: SH
  4. Raise the jack allowing the engine assembly to lift from the engine frame slightly.
  5. Remove the transmission mount bracket mounting bolts.
  6. Remove the transmission mount bracket

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 793606 Size: SH
  1. Install the transmission mount bracket and mounting bolts to the engine.

    2. Tighten
    Tighten the bolts to 110 N·m (89 lb ft).

  2. Lower the transmission in position.

    3. Object Number: 521323 Size: SH
  3. Install the nuts (1) to the mount (2) and mount bracket (3).

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

  4. Remove the engine assembly support jack.
  5. Lower the vehicle.