GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 43628 Frame Alignment fixture
    • SA9140E Torque Angle Gage

Removal Procedure


    Object Number: 892053  Size: SH
  1. If equipped with a L81 engine, remove the rear exhaust manifold pipe heat shield. Refer to Exhaust Pipe Heat Shield Replacement in Engine Exhaust.

  2. Object Number: 891585  Size: SH
  3. Remove the rear transaxle mount through bolt and transaxle mount to frame bolt.

  4. Object Number: 857193  Size: SH
  5. Secure the radiator to the upper radiator support.
  6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  7. Remove the front tires and wheels. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

  8. Object Number: 894225  Size: SH
  9. Remove the right front lower splash shield (2).
  10. Remove the left front wheel liner push pin from the frame.

  11. Object Number: 892567  Size: SH
  12. Disconnect the rear oxygen (O2) sensor harness push pins from the frame.

  13. Object Number: 892079  Size: SH
  14. If equipped with a L61 engine, remove the O2 sensor harness to underbody clamp attachment nut.
  15. Disconnect the exhaust manifold pipe from the exhaust manifold on L61 engine or manifolds on the L81 engine. Refer to Exhaust Manifold Pipe Replacement in Engine Exhaust .

  16. Object Number: 891595  Size: SH
  17. Remove the front transaxle mount through bolt.

  18. Object Number: 891601  Size: SH
  19. Remove the remaining rear transaxle mount to frame bolts.
  20. Remove the rear transaxle mount from the vehicle.

  21. Object Number: 891603  Size: SH
  22. Remove the steering gear to frame bolts and nuts. Discard the bolts and nuts.
  23. If equipped with a L61 engine, remove the steering gear heat shield. Refer to Steering Gear Heat Shield Replacement in Power Steering System.
  24. Using mechanics wire, secure the steering gear to the vehicle body.

  25. Object Number: 893335  Size: SH
  26. If equipped with a manual transmission, disconnect the frame to shiftier link pivot pin clip.

  27. Object Number: 892718  Size: SH
  28. Disconnect the A/C pipe to frame clip at the front of the vehicle.

  29. Object Number: 891609  Size: SH
  30. Disconnect the stabilizer bar link from the struts. Discard the nuts.

  31. Object Number: 891570  Size: SH
  32. Disconnect the lower control arms from the steering knuckle. Refer to Lower Control Arm Replacement in Front Suspension.

  33. Object Number: 891611  Size: SH
  34. Remove the suspension support assemblies. Discard the bolts.
  35. Remove the suspension support cage nuts from the body. Discard the nuts.
  36. Use a powertrain lifting table and the J 43628 to support the frame assembly.

  37. Object Number: 891619  Size: SH
  38. Remove the remaining frame to body bolts. Discard the frame to body bolts.
  39. Lower the frame from the vehicle.
  40. Remove all frame assembly cage nuts from the body and discard.

  41. Object Number: 891612  Size: SH
  42. Remove the stabilizer shaft assembly. Refer to Stabilizer Shaft Replacement in Front Suspension.

  43. Object Number: 891615  Size: SH
  44. Remove the lower control arms. Refer to Lower Control Arm Replacement in Front Suspension.
  45. Remove the frame assembly from the powertrain lifting table and the J 43628 .

Installation Procedure

  1. Install new frame cage nut and support cage nuts to the vehicle body.

  2. Object Number: 891615  Size: SH
  3. Install the lower control arms. Refer to Lower Control Arm Replacement in Front Suspension.

  4. Object Number: 891612  Size: SH
  5. Install the stabilizer shaft assembly to the frame . Refer to Stabilizer Shaft Replacement in Front Suspension.
  6. Important: The J 43628 must fully engage in all frame gage holes.

  7. Install the frame assembly to the powertrain lifting table and the J 43628 .
  8. Raise the frame assembly to the body.

  9. Object Number: 891619  Size: SH
  10. Loosely install new frame to body bolts.

  11. Object Number: 891611  Size: SH
  12. Install the suspension supports using new bolts.
  13. Notice: Refer to Fastener Notice in the Preface section.

  14. Tighten the suspension support bolts and frame mounting bolts using a SA9140E .
  15. Tighten
    Tighten the bolts to 90 N·m (66 lb ft) plus an additional 45-60 degrees.


    Object Number: 891570  Size: SH
  16. Connect the lower control arm to the steering knuckle. Refer to Lower Control Arm Replacement in Front Suspension.

  17. Object Number: 893335  Size: SH
  18. On vehicles equipped with a manual transmission, install the frame to shifter link pivot pin clip.

  19. Object Number: 891603  Size: SH
  20. Install the steering gear to the frame using new frame to steering gear bolts.
  21. Tighten
    Tighten the bolts to 45 N·m (33 lb ft) plus 90 degrees.

  22. If equipped with a L61 engine, install the steering gear heat shield. Refer to Steering Gear Heat Shield Replacement in Power Steering System.

  23. Object Number: 891609  Size: SH
  24. Using new nuts, connect the stabilizer bar link to the struts. Refer to Stabilizer Shaft Link Replacement in Front Suspension.

  25. Object Number: 891601  Size: SH
  26. Place the rear transaxle mount to the frame and install 2 mount to frame bolts.
  27. Tighten
    Tighten the bolts to 60 N·m (44 lb ft).


    Object Number: 891595  Size: SH
  28. Install the front transaxle mount through bolt.
  29. Tighten
    Tighten the bolt to 55 N·m (41 lb ft).

  30. Connect the exhaust manifold pipe to the manifold on the L61 engine or manifolds on the L81 engine. Refer to Exhaust Manifold Pipe Replacement in Engine Exhaust.

  31. Object Number: 892079  Size: SH
  32. If equipped with a L61 engine, install the O2 sensor clamp to underbody nut.
  33. Tighten
    Tighten the nut to 4 N·m (35 lb in).


    Object Number: 892718  Size: SH
  34. Secure the A/C pipe clip to the front frame assembly.

  35. Object Number: 894225  Size: SH
  36. Install the right front lower splash shield.
  37. Tighten
    Tighten the splash shield to body bolts to 5 N·m (45 lb in).

  38. Install the left front wheel liner push pin to the frame assembly.

  39. Object Number: 892567  Size: SH
  40. Attach the O2 sensor harness to the frame assembly.
  41. Install the front tires and wheels. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  42. Lower the vehicle.

  43. Object Number: 891585  Size: SH
  44. Install the remaining rear mount to frame bolt.
  45. Tighten
    Tighten the bolt to 60 N·m (44 lb ft).

  46. Install the rear transaxle mount through bolt.
  47. Tighten
    Tighten the bolt to 90 N·m (66 lb ft).


    Object Number: 892053  Size: SH
  48. If equipped with a L81 engine, install the rear exhaust manifold pipe heat shield. Refer to Exhaust Pipe Heat Shield Replacement in Engine Exhaust.
  49. Align the front end. Refer to Wheel Alignment Measurement in Wheel Alignment.