GM Service Manual Online
For 1990-2009 cars only

Notice: Refer to General Repair Instructions in the Preface section.

  1. Raise the transmission in order to remove the weight from the transmission mount and create slight tension in the rubber.
  2. Observe the transmission mount while raising the transmission. Replace the transmission mount if the transmission mount exhibits any of the following conditions:
  3.    Important: Black paint on the rubber will crack with time, this does no constitute a failure.

    • The hard rubber surface is covered with heat check cracks.
    • The rubber is separated from the metal plate of the transmission mount.
    • The rubber is split through the centre of the transmission mount.
  4. If there is movement between the metal plate of the transmission mount and its attaching points, lower the transmission on to the transmission mount. Tighten the bolts or nuts attaching the transmission mount to the frame or transmission mount bracket.