GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39580 Universal Engine Support Table

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the front tires and wheels. Refer to Tire and Wheel Removal and Installation.
  3. Remove the front engine splash shield. Refer to Engine Splash Shield Replacement.
  4. Remove the stabilizer shaft. Refer to Stabilizer Shaft Replacement.
  5. Remove the power steering gear . Refer to Steering Gear Replacement.
  6. Remove the inner fender liner enough to gain access to the front frame bolts. Refer to Front Fender Liner Replacement.
  7. Disconnect the power steering cooler pipe from the pressure hose. Refer to Power Steering Cooler Pipe/Hose Replacement.
  8. Disconnect the front wheel speed sensor harness connectors.
  9. Disconnect the front wheel speed sensor wiring harnesses from the lower control arms.
  10. Disconnect the lower control arm from the steering knuckles. Refer to Steering Knuckle Replacement .
  11. Remove the engine mount nuts.
  12. Remove the transaxle mount nuts.

  13. Object Number: 333118  Size: SH
  14. Lower the vehicle until the frame contacts the J 39580 .

  15. Object Number: 478740  Size: SH
  16. Remove frame to body bolts.
  17. Raise the vehicle in order to separate the frame from the vehicle.
  18. If you are replacing the frame, perform the following steps:
  19. 16.1. Remove the frame insulators from the frame. Refer to Front Frame Cushion or Insulator Replacement.
    16.2. Remove the lower control arms from the frame. Refer to Lower Control Arm Replacement.
    16.3. Remove the power steering cooler pipe from the frame. Refer to Power Steering Cooler Pipe/Hose Replacement.

Installation Procedure

  1. If you are replacing the frame, perform the following steps:
  2. 1.1. Install the power steering cooler pipe to the frame. Refer to Power Steering Cooler Pipe/Hose Replacement.
    1.2. Install the lower control arms to the frame. Refer to Lower Control Arm Replacement.
    1.3. Install the frame insulators to the frame. Refer to Front Frame Cushion or Insulator Replacement .
  3. Position the J 39580 with the frame under the vehicle.

  4. Object Number: 333118  Size: SH

    Important: Ensure that the power steering cooler line does not become trapped by the engine mount during this step.

  5. Lower the vehicle until the frame is close to the vehicle.
  6. Important: Ensure that the alignment pins remain installed during the frame installation.

  7. Insert two 19 mm (0.75 in) diameter X  203 mm (8 in) long guide pins or drill bits into the frame right side alignment holes in order to align the frame.
  8. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 478740  Size: SH
  9. Install the frame to chassis front bolts.
  10. Tighten
    Tighten the bolts to 155 N·m (114 lb ft).

  11. Install the frame to chassis rear bolts.
  12. Tighten
    Tighten the bolts to 240 N·m (177 lb ft).

  13. Remove the alignment pins from the frame.
  14. Install the transaxle mount nuts.
  15. Tighten
    Tighten the nuts to 47 N·m (35 lb ft).

  16. Install the engine mount nuts.
  17. Tighten
    Tighten the nuts to 47 N·m (35 lb ft).

  18. Connect the lower control arms to the steering knuckles. Refer to Steering Knuckle Replacement .
  19. Connect the wheel speed sensor wiring harnesses to the lower control arms.
  20. Connect the wheel speed sensor harness connectors.
  21. Connect the power steering cooler pipe to the pressure hose. Refer to Power Steering Cooler Pipe/Hose Replacement .
  22. Install front fender liner. Refer to Front Fender Liner Replacement.
  23. Install the power steering gear . Refer to Steering Gear Replacement.
  24. Install the stabilizer shaft. Refer to Stabilizer Shaft Replacement.
  25. Install the front engine splash shield. Refer to Engine Splash Shield Replacement.
  26. Install the front tires and wheels. Refer to Tire and Wheel Removal and Installation.
  27. Lower the vehicle.