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Home › GMC › 2007 › Acadia SLT, AWD › Repair and Diagnosis › Body & Frame › Frames, Subframes & Crossmembers › Frame And Underbody › Repair Instructions › Front Frame Replacement › Installation Procedure

Installation Procedure

  1. Install the frame insulators to the frame. Refer to Front Frame Cushion or Insulator Replacement  and Rear Frame Cushion or Insulator Replacement .
    2. Fig 1: View Of Stabilizer Shaft And Lower Control Arms
    GM1857009Courtesy of GENERAL MOTORS CORP.
  2. Install the lower control arms. Refer to Lower Control Arm Replacement .
  3. Install the stabilizer shaft. Refer to Stabilizer Shaft Insulator Replacement .
    4. Fig 2: Identifying Frame Brace And Bolts
    GM1857012Courtesy of GENERAL MOTORS CORP.
  4. Install the frame brace.
    NOTE: Refer to Fastener Notice .
  5. Install the frame brace bolts.

    Tighten:  Tighten the bolts to 60 N.m (44 lb ft).

    6. Fig 3: View Of Frame
    GM1857007Courtesy of GENERAL MOTORS CORP.
  6. Position the transaxle table with the frame under the vehicle.
    IMPORTANT: Ensure that the power steering cooler line does not become trapped by the engine mount during this step.
  7. Lower the vehicle while aligning the powertrain mounts with the frame until the vehicle is close to the frame.
    IMPORTANT: Ensure that the alignment pins remain installed during the frame installation.
  8. Inserting two 19 mm (0.75 in) diameter X 203 mm (8.0 in) long guide pins or drill bits into the frame rear alignment holes in order to align the frame.
    9. Fig 4: Identifying Front Crossmember Brace And Bolts
    GM1855951Courtesy of GENERAL MOTORS CORP.
  9. Install the front crossmember brace (1).
    IMPORTANT: If the frame insulator bolt does not screw in smoothly, run a tap through the frame nut in the body in order to remove foreign material. Ensure the tap does not punch through the underbody.
    Do not over tighten the insulator. Over tightening may collapse a spacer or strip a bolt.
  10. Install the front frame to body bolts (2).

    Tighten:  Tighten the bolts to 110 N.m (81 lb ft) plus 90 degrees.

  11. Install the front crossmember brace bolts (3).

    Tighten:  Tighten the bolt to 50 N.m (37 lb ft).

    12. Fig 5: Locating Reinforcements, Frame To Body Bolts, Reinforcement Bolts And Studs
    GM1855958Courtesy of GENERAL MOTORS CORP.
  12. Install the reinforcements (1).
  13. Install the rear frame to body bolts (4).

    Tighten:  Tighten the bolts to 110 N.m (81 lb ft) plus 90 degrees.

  14. Install the reinforcement bolts (2).

    Tighten:  Tighten the bolt to 60 N.m (44 lb ft).

  15. Install the reinforcement studs (3).

    Tighten:  Tighten the stud to 60 N.m (44 lb ft).

  16. Remove the alignment pins from the frame.
  17. Install the underbody rear side rail. Refer to Underbody Rear Side Rail Replacement .
    IMPORTANT: The engine and transmission mount nuts must be replaced once removed. When the nut has to be loosened or removed, threadlocker must be used in addition to using a new nut. Allow adhesive on new engine and transmission mount nuts to cure for 24 hours after replacement.
    18. Fig 6: Locating Engine And Transaxle Mount Lower Nuts
    GM1857001Courtesy of GENERAL MOTORS CORP.
  18. Apply threadlocker to the engine and transmission mount threads.
  19. Install the engine and transaxle mount nuts.

    Tighten:  Tighten the nuts to 75 N.m (55 lb ft).

    20. Fig 7: Identifying Power Steering Cooler Inlet Pipe
    GM1857015Courtesy of GENERAL MOTORS CORP.
  20. Install the power steering cooler inlet pipe to the frame. Refer to Power Steering Cooler Pipe/Hose Replacement .
  21. Install the power steering gear to the frame. Refer to Steering Gear Replacement .
  22. Install the power steering gear bolts. Refer to Steering Gear Replacement .
  23. Install the power steering gear heat shield. Refer to Steering Gear Heat Shield Replacement .
    Fig 8: Locating Steering Gear Stub Shaft
    GM1852431Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Whenever the steering gear is moved in relation to the body, disconnect the intermediate shaft from the steering gear stub shaft.
  24. Disconnect the intermediate shaft from the steering gear stub shaft. Refer to Intermediate Steering Shaft Replacement .
  25. Connect the stabilizer shaft links to the stabilizer shaft. Refer to Stabilizer Shaft Link Replacement .
    26. Fig 9: View Of Lower Ball Joint Retaining Nut
    GM1852433Courtesy of GENERAL MOTORS CORP.
  26. Install the lower ball joints to the steering knuckles. Refer to Lower Control Arm Replacement .
  27. Install both lower ball joint retaining nuts. Refer to Lower Control Arm Replacement .
  28. Install the propeller shaft if the vehicle is equipped with all wheel drive. Refer to Propeller Shaft Replacement .
  29. Install the exhaust flexible pipe. Refer to Exhaust Flexible Pipe Replacement .
    30. Fig 10: Identifying Left Engine Splash Shield
    GM1857709Courtesy of GENERAL MOTORS CORP.
  30. Install the left engine splash shield. Refer to Front Wheelhouse Liner Replacement (Front)  or Front Wheelhouse Liner Replacement (Rear) .
  31. Install the front tires and wheels. Refer to Tire and Wheel Removal and Installation .
  32. Lower the vehicle.
  33. Remove the engine support fixture.
  34. Inspect the front wheel alignment and adjust the toe angle if necessary. Refer to Measuring Wheel Alignment .
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