ICON’s 7” Suspension System for the 2005-2007 Ford Super Duty offers unparalleled performance and ride quality while giving the vehicle clearance for 38” tall tires. This Stage 4 system takes performance and ride quality to a whole new level. The Stage 4 system comes complete with ICON 2.5 Aluminum Series piggyback shocks, Dual-Rate Coil Springs, Drop Pitman Arm, Pan Rod Bracket, Brake Line Brackets, Radius Arm Drop Down Brackets, ICON's progressive 5" rear leaf springs, and U-bolts.