Z Height Adjustment

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Torsion Bar Suspension Adjuster Bolt

Courtesy of GENERAL MOTORS CORP.

For vehicles equipped with a torsion bar suspension, turn the bolt (1) that contacts the torsion arm as needed.
For vehicles without torsion bars, replace worn or damaged components as necessary.