GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Express - AWD 🢒 Preface 🢒 Cautions and Notices 🢒 Transmission Support Crossmember Replacement

Removal Procedure

    Object Number: 1199229 Size: SH
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Support the transmission with a safety stand.
  3. Remove the brake combination valve to transmission support crossmember mounting bolt.

    4. Object Number: 829088 Size: SH
  4. Remove the fuel filter bracket to transmission support crossmember retaining bolts.

    5. Object Number: 829715 Size: SH
  5. Remove the transmission mount to the transmission support crossmember retaining nut, for RWD vehicles.

    6. Object Number: 829718 Size: SH
  6. Remove the transmission mount to the transmission support crossmember retaining nuts, for 4WD vehicles.

    7. Object Number: 851495 Size: SH
  7. Remove the transmission support crossmember to the frame mounting bolts.
  8. Remove the transmission support crossmember from the vehicle.

Installation Procedure

    Object Number: 851495 Size: SH
  1. Install the transmission support crossmember to the vehicle.

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

  2. Install the transmission support crossmember to the frame mounting bolts.

    3. Tighten

        • Tighten the bolts to 50 N·m (37 lb ft), except Cutaway.
        • Tighten the bolts to 65 N·m (48 lb ft), Cutaway.

    Object Number: 829718 Size: SH
  3. Install the transmission mount to the transmission support crossmember retaining nuts, for 4WD vehicles.

    4. Tighten
    Tighten the nuts to 60 N·m (44 lb ft).


    Object Number: 829715 Size: SH
  4. Install the transmission mount to the transmission support crossmember retaining nut, for RWD vehicles.

    5. Tighten
    Tighten the nut to 60 N·m (44 lb ft).


    Object Number: 829088 Size: SH
  5. Install the fuel filter bracket to transmission support crossmember retaining bolts.

    6. Tighten
    Tighten the bolts to 30 N·m (22 lb ft).


    Object Number: 1199229 Size: SH
  6. Install the brake combination valve to transmission support crossmember mounting bolt.

    7. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  7. Remove the safety stands.
  8. Lower the vehicle.