The ICON Stage 4 7" lift suspension system for 2011–2016 Ford F-250/F-350 Super Duty combines ICON-engineered dual-rate coil springs with 2.5 Aluminum Series piggyback reservoir shocks and fabricated radius arm drop brackets to improve wheel travel and ride comfort without reducing towing capability. The comprehensive system includes track bar drop brackets, bump stop extensions, sway bar links, heavy-duty components, and rear 5" progressive leaf springs to offer improved on- and off-road behavior and clearance for 37" tires.
ICON 11-16 Ford F250/F350 7in Stage 4 Suspension System