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 2004 to 2008 Make FORD Model F-1504WD Front +2.6 in Rear +0-1 in Includes Pro-Truck Lift Springs and Pro-Truck Sport Shocks.