Perfectly matched system of lift springs and shocks for maximum travel and performance Manufactured using race winning off-road race spring technology Developed to provide balanced ride quality control and off-road capability Made In U.S.A. Million-Mile Warranty Download the Installation Guides: Eibach Installation File #1Eibach Installation File #2Eibach Installation File #3 Compatible Vehicles Year 2007 to 2013 Make CHEVROLET Model Silverado 1500Excludes Hybrid 2WD Front +2.3" Rear +0-1"