GM Service Manual Online
For 1990-2009 cars only

Transmission Mount Bracket Replacement - Left Side LY7

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the right front tire and wheel. Refer to Tire and Wheel Removal and Installation .
  3. Remove the right engine splash shield. Refer to Engine Splash Shield Replacement .

  4. Object Number: 1395450  Size: SH
  5. Remove the transmission lower brace bolts.
  6. Remove the transmission lower brace.
  7. If you are servicing the transmission upper brace, perform the following steps.

  8. Object Number: 1395483  Size: SH
  9. Remove the transmission upper brace nut located behind the power steering pump.
  10. Disconnect the intermediate steering shaft from the steering gear. Refer to Intermediate Steering Shaft Replacement .
  11. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

  12. Object Number: 1388664  Size: SH
  13. Use a utility stand in order to support the center of the rear frame.
  14. Remove only the two frame rear bolts.
  15. Raise the vehicle or lower the powertrain in order to access the transmission upper brace.

  16. Object Number: 1395453  Size: SH
  17. Remove the transmission upper brace bolts (1, 2).
  18. Remove the transmission upper brace.

Installation Procedure


    Object Number: 1395453  Size: SH
  1. Install the transmission upper brace.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the transmission upper brace bolts.
  4. Tighten

        • Tighten the transmission upper brace outboard bolts (2) to 23 N·m (17 lb ft).
        • Tighten the transmission upper brace inboard bolt (1) to 50 N·m (37 lb ft).
  5. Lower the vehicle or raise the powertrain until the frame insulators contact the chassis.
  6. Install the two frame rear bolts. Refer to Front Frame Replacement .
  7. Connect the intermediate steering shaft to the steering gear. Refer to Intermediate Steering Shaft Replacement .

  8. Object Number: 1395483  Size: SH
  9. Install the transmission upper brace nut located behind the power steering pump.
  10. Tighten
    Tighten the transmission upper brace nut to 50 N·m (37 lb ft).


    Object Number: 1395450  Size: SH
  11. Install the transmission lower brace.
  12. Install the transmission lower brace bolts.
  13. Tighten
    Tighten the transmission lower brace bolts to 50 N·m (37 lb ft).

  14. Install the right engine splash shield. Refer to Engine Splash Shield Replacement .
  15. Install the right front tire and wheel. Refer to Tire and Wheel Removal and Installation .
  16. Lower the vehicle.