2011-2019 GM 2500/3500 2WD/4WD 8-lug2.25'''' Torsion Key Leveling Kit 2011-2019 Silverado/Sierra 2500HD/3500HD 2 4WD. Front 2.25'''' Leveling Kit. PN 9-302 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. RuggedOff Road? Torsion Key Leveling Kit. Shock extensions included. Safely raises trucks 2.25 inches. Easy Installation.