GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Preface 🢒 Cautions and Notices 🢒 Transmission Mount Replacement

Removal Procedure

    Object Number: 816267 Size: SH
  1. Raise and suitably support the vehicle with safety stands. Refer to Lifting and Jacking the Vehicle .
  2. Remove engine cover to gain access to rear mounts. Refer to Engine Cover Replacement .
  3. Support the transmission with safety stands.
  4. Remove the transmission mount bracket to transmission mount bolt/nuts.
  5. Raise the transmission mount bracket off of the transmission to clear the studs.

    6. Object Number: 816310 Size: SH
  6. If the transmission mount studs attach to the body mount support the body so it does not drop.
  7. Remove the transmission mount bolts/nuts.

    8. Object Number: 816282 Size: SH
  8. Remove the transmission mount .

Installation Procedure

    Object Number: 816282 Size: SH
  1. Install the transmission mount.

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


    Object Number: 816310 Size: SH
  2. Install the transmission mount nuts and bolts.

    3. Tighten
    Tighten the transmission mount nuts/bolts to 160 N·m (118 lb ft).

  3. Remove body support if used.
  4. Lower the transmission mount brackets onto the transmission mount.

    5. Object Number: 816267 Size: SH
  5. Install the transmission mount bracket to transmission mount bolts/nuts.

    6. Tighten
    Tighten the transmission mount bracket to transmission mount bolts/nuts 195 N·m (144 lb ft).

  6. Remove the safety stands from the transmission.
  7. Install engine cover. Refer to Engine Cover Replacement .
  8. Lower the vehicle.