Chevy GMC 1500 1.5-3" Leveling Lift Kit with Shock Extensions 4WD 1999-2007 (6-lug) Solid steel torsion keys adjustable for 1.5"-3" of lift Shock extensions included, no need for new shocks Fits 6-lug 4wd models only For 2007 year models, fits Classic body style only 1999 - 2007 Chevrolet GMC 6-lug 4wd Trucks