This ICON Vehicle Dynamics 7” suspension system is a great way to lift your 4WD 2005-2007 Ford F250/350 Super Duty while drastically improving ride quality and performance. This suspension system is perfect for on-road and off-road use including towing, job site duty, and provides ultimate performance for extreme off-road adventure. ICON's 7" Stage 5 System is comprised of dual rate coil springs, progressive leaf springs, 4-Link kit, ICON CDC Valve 2.5 Aluminum Series piggyback reservoir front and rear shocks, plus all of the necessary hardware for installation.