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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 43 (Front Suspension) >> Repair Instructions >> Torsion Bar Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the torsion bars.
  2. Install the torsion bar crossmember.
    3. Fig 1: Torsion Bar Crossmember
    GM793276Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  3. Install the torsion bar crossmember bolts and the nuts.

    Tighten:  Tighten the nuts to 110 N.m (81 lb ft).

    4. Fig 2: J 36202, Adjustment Arm & Crossmember
    GM360742Courtesy of GENERAL MOTORS CORP.
  4. While supporting the adjustment arm, slide the torsion bar rearward until the torsion bar fully engages the adjustment arm.
  5. Install the J 36202  to the adjustment arm and the crossmember. See Special Tools .
  6. Increase the tension on the adjustment arm in order to load the torsion bar.
    7. Fig 3: Adjustment Bolt & Adjuster Nut
    GM793274Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Install the adjustment bolt the same amount of turns that were required to remove the bolt during removal.
  7. Install the adjustment bolt and the adjuster nut.
  8. Remove the J 36202  releasing the tension on the torsion bar until the load is taken up by the adjustment bolt. See Special Tools .
  9. Lower the vehicle.
  10. Measure the Z height. Refer to Trim Height Inspection .
    11. Fig 4: Locating Torsion Bar Adjustment Bolt
    GM793275Courtesy of GENERAL MOTORS CORP.
  11. Turn the adjustment bolt clockwise to increase the Z height and counterclockwise to decrease the Z height.
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