Specification: Lift Height: 1-3" Front & 3" Rear Drive Type:4WD 2WD Features: Improve The Appearance Ofvehicles Support The Dependable Riding Balance Pervent From Damaging Easily Fitment: 2001-2010 Chevrolet Silverado 1500hd/2500hd/3500hd 2001-2010 Gmc Sierra 1500hd/2500hd/3500hd Fits 8 Lug Trucks Only Not Fit Models With Factory Overload Springs Or Dually Models Only .