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Home >> Chevrolet >> 2009 >> Impala SS >> Repair and Diagnosis >> Body & Frame >> Frames, Subframes & Crossmembers >> Frame And Underbody >> Repair Instructions >> Frame Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: Rear Frame To Body Bolts
    GM540082Courtesy of GENERAL MOTORS CORP.
  1. If you are replacing the frame, install the following components:
    2. Fig 2: Identifying Utility Stand
    GM333118Courtesy of GENERAL MOTORS CORP.
  2. Position the engine support table with the frame under the vehicle.
  3. Lower the vehicle to the frame.
    4. Fig 3: Identifying Securing Bolts
    GM1625357Courtesy of GENERAL MOTORS CORP.
  4. Loosely install the bolts (1) to secure the frame to the body.
    5. CAUTION: Refer to Fastener Caution .
  5. Align the frame to the body by inserting two 19X203 mm (0.74X8.0 in) pins in the alignment holes (2) on the right side of the frame.

    Tighten: 

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

    6. Fig 4: Exploded View Of Frame Reinforcements & Bolts
    GM1625455Courtesy of GENERAL MOTORS CORP.
  6. Install the frame reinforcements (2).
  7. Install the frame reinforcement bolts (1).

    Tighten:  Tighten the bolts to 20 N.m (15 lb ft).

  8. Install the frame reinforcement nuts (3).

    Tighten:  Tighten the nuts to 20 N.m (15 lb ft).

  9. Connect both the lower ball joints to the steering knuckle. Refer to Lower Control Arm Ball Joint Replacement .
  10. Install the nuts which secure the engine mount to the frame. Refer to Engine Mount Replacement for the 3.5L engine, Engine Mount Replacement for the 3.9L engine, Engine Mount Replacement - Left Side and Engine Mount Bracket Replacement - Left Side for the 5.3L engine.
  11. Install the nuts which secure the transaxle mount to the frame. Refer to Transmission Mount Replacement - Left Side for the 4T65-E transaxle.
  12. Remove the power steering gear from the exhaust pipe. Position to the frame.
  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 5: Front Wheel Speed Sensor Connectors & Harness Retainers
    GM460829Courtesy of GENERAL MOTORS CORP.
  15. Connect both front wheel speed sensor connectors (1), if equipped.
  16. Install both front wheel speed harness retainers (2) to the frame and to the lower control arm, if equipped.
  17. Install the positive battery cable. Refer to Battery Positive and Negative Cable Replacement (RPO LS4) or Battery Positive and Negative Cable Replacement (RPOs LZE/LZ4/LZ8) .
  18. Install the power steering cooler pipe. Refer to Power Steering Cooler Pipe/Hose Replacement (LS4) or Power Steering Cooler Pipe/Hose Replacement (3.5L and 3.9L) .
  19. Install the radiator lower air deflector. Refer to Radiator Air Lower Baffle and Deflector Replacement .
  20. Install the front tires and wheels. Refer to Tire and Wheel Removal and Installation .
  21. Lower the vehicle.
  22. Remove the engine support fixture. Refer to Engine Support Fixture for the 3.5L engine, Engine Support Fixture for the 3.9L engine, Engine Support Fixture for the 5.3L engine.
  23. Inspect the front wheel alignment. Refer to Wheel Alignment Measurement .
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