GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Mechanical - 7.2L (Caterpillar) 🢒 Engine Rear Mount Replacement

Removal Procedure
  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 engine using suitable safety stands.
  4. Disconnect any engine harness clips or line routing on the engine mount bracket.
  5. Use a suitable engine hoist to lift weight off the engine mounts.

    6. Object Number: 885622 Size: SH
  6. Remove the engine rear mount bracket to engine mount.
  7. Remove the rear engine mount bracket. Refer to Engine Rear Mount Bracket Replacement .
  8. If the body mount is supported by the engine mount fasteners support the body with a jack or stand.

    9. Object Number: 816310 Size: SH
  9. Remove the engine mount to frame bolts/nuts.

    10. Object Number: 816282 Size: SH
  10. Remove the rear engine mount assembly.

Installation Procedure

    Object Number: 816282 Size: SH
  1. Install the rear engine mount assembly .

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


    Object Number: 816310 Size: SH
  2. Install the rear engine mount to frame nuts.
  3. Install the engine mount to frame nuts.

    4. Tighten
    Tighten the rear engine mount to frame nuts to 160 N·m (118 lb ft).

  4. Install the rear engine mount bracket. Refer to Engine Rear Mount Bracket Replacement .
  5. Remove jacks or stands supporting the body if used.

    6. Object Number: 885622 Size: SH
  6. Lower the rear engine mount bracket on to the engine mount.
  7. Install the rear engine mount bracket to engine mount nut.

    8. Tighten
    Tighten the rear engine mount bracket to the engine mount nut to 195 N·m (144 lb ft).

  8. Install any engine harness clips or lines routing on the engine mounts.
  9. Remove the engine safety stands and engine hoist.
  10. Install engine cover. Refer to Engine Cover Replacement .
  11. Lower the vehicle.