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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Frame And Underbody) >> Repair Instructions >> Crossmember Replacement (Lower Control Arm) >> 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.
    Fig 1: Crossmember (Lower Control Arm)
    GM821952Courtesy of GENERAL MOTORS CORP.
  1. Install the crossmember to the vehicle.
  2. Perform the following procedure before installing the bolts.
    • Remove all traces of the original adhesive patch.
    • Clean the threads of the bolt with denatured alcohol or equivalent and allow to dry.
    • Apply Threadlocker GM P/N 12345493 (Canadian P/N 10953488).
  3. NOTE: Refer to Fastener Notice .
  4. Install the bolts and the nuts.

    Tighten:  Tighten the nuts to 120 N.m (89 lb ft).

  5. Remove the differential support.
  6. Fig 2: Differential Mounting Nut, Bolt & Washer
    GM821616Courtesy of GENERAL MOTORS CORP.
  7. Install the differential mounting nut, bolt, and washer. Refer to Differential Carrier Assembly Replacement .
  8. Install the underbody shields. Refer to Catalytic Converter Guard Replacement .
  9. Lower the vehicle.