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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1540 (Bumpers And Fascia) >> Repair Instructions >> Front Bumper Impact Bar Adjustment (GMC)

Front Bumper Impact Bar Adjustment (GMC)

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Front Bumper Impact Bar (GMC)
    GM2335562Courtesy of GENERAL MOTORS CORP.
  1. Remove the right or left front wheelhouse liners. Refer to Front Wheelhouse Liner Replacement - Right Side (Chevrolet) or Front Wheelhouse Liner Replacement - Right Side (GMC) and Front Wheelhouse Liner Replacement - Left Side (Chevrolet) or Front Wheelhouse Liner Replacement - Left Side (GMC) .
  2. Loosen the inner front bumper impact bar support bolts (1).
  3. Loosen the outer front bumper impact bar support bolts (2).
  4. Position a service jack to the front bumper impact bar support (3) to raise the front bumper impact bar if needed.
  5. Push downward on the end of the front bumper impact bar (4) to lower if needed.
  6. Align the front bumper impact bar (4) in order to achieve and equal gap to the lower edge of the top cap to bumper.
    7. CAUTION: Refer to Fastener Caution .
  7. Tighten the inner front bumper impact bar support bolts (1) to 55 N.m (40 lb ft).
  8. Tighten the outer front bumper impact bar support bolts (1) to 55 N.m (40 lb ft).
  9. Install the right or left front wheelhouse liners. Refer to Front Wheelhouse Liner Replacement - Right Side (Chevrolet) or Front Wheelhouse Liner Replacement - Right Side (GMC) and Front Wheelhouse Liner Replacement - Left Side (Chevrolet) or Front Wheelhouse Liner Replacement - Left Side (GMC) .
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