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Home › Pontiac › 2008 › Grand Prix Base › Repair and Diagnosis › Body & Frame › Frames, Subframes & Crossmembers › Frame And Underbody › Repair Instructions › Frame Replacement › Installation Procedure

Installation Procedure

    Fig 1: Identifying Utility Stand
    GM333118Courtesy of GENERAL MOTORS CORP.
  1. If you are replacing the frame, install the following components:
  2. Position the engine support table with the frame under the vehicle.
  3. Lower the vehicle to the frame.
    4. Fig 2: View Of Bolts From Rear Frame Of Body
    GM1208437Courtesy of GENERAL MOTORS CORP.
  4. Loosely install the bolts to secure the rear frame to the body.
    5. Fig 3: View Of Bolts From Front Frame Of Body
    GM1208433Courtesy of GENERAL MOTORS CORP.
  5. Loosely install the bolts to secure the front frame to the body.
  6. Align the frame to the body by inserting two 19 X 203 mm (0.74 X 8 in) pins in the alignment holes on the right side of the frame.
    7. NOTE: Refer to Fastener Notice .
  7. Install the front and rear frame bolts.

    Tighten: 

    • Tighten the front bolts to 145 N.m (107 lb ft).
    • Tighten the rear bolts to 160 N.m (118 lb ft).

  8. Install the drivetrain reinforcements using the following procedure:
    1. Position the drivetrain reinforcements to the front frame mount stud to the support brace.
    2. Loosely install the drivetrain reinforcement to support brace bolts.
    3. Install the drivetrain reinforcement to cradle mount nut.

      Tighten: 

      • Tighten the drivetrain reinforcement brace nut to 50 N.m (37 lb ft).
      • Tighten the drivetrain reinforcement brace bolts to 25 N.m (18 lb ft).

  9. Install the radiator to front frame brackets.
  10. Connect both the lower ball joints to the steering knuckle. Refer to Lower Control Arm Ball Joint Replacement .
  11. Install the nuts that secure the engine mount to the frame. Refer to Engine Mount Replacement - Right Side for the 3.8L engine or Engine Mount Replacement - Left Side and Engine Mount Replacement - Right Side for the 5.3L engine.
  12. Install the nuts which secure the transaxle mount to the frame. Refer to Transmission Mount Replacement - Left Side for the automatic transaxle.
  13. Install the steering gear mounting bolts. Refer to Steering Gear Replacement .
  14. Install the stabilizer shaft links. Refer to Stabilizer Shaft Link Replacement .
    15. Fig 4: View Of Front Wheel Speed Sensor Harness Connectors
    GM1209233Courtesy of GENERAL MOTORS CORP.
  15. If applicable, connect the wheel speed sensor wiring harness to the frame and lower control arm.
  16. If applicable, connect the front wheel speed sensor connectors (1).
  17. If applicable, install the front wheel speed harness retainers (2) to the frame and to the lower control arm.
  18. Install the positive battery cable and retainers to the frame. Refer to Battery Positive Cable Replacement (L26) or Battery Positive Cable Replacement (LS4) .
  19. Install the power steering cooler pipe. Refer to Power Steering Cooler Pipe/Hose Replacement (3.8L V6) or Power Steering Cooler Pipe/Hose Replacement (5.3L V8) .
  20. Connect the fog lamp harness connectors.
  21. Install the front tires and wheels. Refer to Tire and Wheel Removal and Installation .
  22. Lower the vehicle.
  23. Remove the engine support fixture.
  24. Inspect the front wheel alignment. Refer to Wheel Alignment Measurement .
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