GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 647997  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Support the transmission with a transmission jack.
  3. Remove the transmission mount to the transmission support retaining nut or nuts.

  4. Object Number: 702771  Size: SH
  5. Raise the transmission to take the weight off of the mount.
  6. Remove the transmission mount to the transmission or transfer case adapter mounting bolts (1).
  7. Raise the transmission just enough to remove the transmission mount.
  8. Remove the transmission mount from the vehicle.

Installation Procedure


    Object Number: 702771  Size: SH
  1. Install the transmission mount to the vehicle.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the transmission mount to the transmission or transfer case adapter mounting bolts (1).
  4. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).


    Object Number: 647997  Size: SH
  5. Lower the transmission.
  6. Install the transmission mount to the transmission support retaining nut or nuts.
  7. Tighten
    Tighten the nut or nuts to 40 N·m (30 lb ft).

  8. Remove the transmission jack.
  9. Lower the vehicle.