The Rugged Off Road Chevy Silverado 2500/3500 HD 8-lug 2.25 inch torsion key leveling kit will lift the front of your 2011-UP Chevy Silverado 2500/3500 HD 8-lug 2WD & 4WD pickup to allow for larger wheels and tires. Provides a leveled stance. Includes shock mount extension spacers. Shock extensions included. Safely raises trucks 2.25 inches. Easy Installation.