GMC Sierra 3500 01-07 2WD 4WD 8-Lug. GMC Sierra 2500 99-04 2WD 4WD 8-Lug. Chevy Silverado 3500 01-07 2WD 4WD 8-Lug. Chevy Silverado 2500 99-04 2WD 4WD 8-Lug. Adjustable torsion key leveling lift kit engineered to give the SUV or trucks a level stance.