ICON 2017+ Ford F-250/F-350 7in Stage 4 Suspension System

ICON's Stage 4 system for the 2017-2022 Ford F-250 and F-350 Super Duty takes a fundamentally different approach to the front suspension than lower-tier kits. Instead of retaining the factory radius arms and correcting their geometry with drop brackets, this system replaces them entirely with ICON's 4-Link kit. That distinction matters more than most people realize.

Factory radius arms on the Super Duty platform create suspension bind during articulation -- as the axle moves through its travel, the fixed arc of the radius arm fights the natural movement of the axle, creating resistance and limiting wheel travel. ICON's 4-Link conversion eliminates this bind by allowing the front axle to move freely through its full range of travel. The 4-Link geometry also maintains positive caster throughout that travel, which means the truck tracks straight and steers predictably whether the suspension is fully compressed or extended. The result is a noticeably smoother ride in all conditions -- on-road, off-road, and while towing.

This is a 7-inch lift system that addresses the complete vehicle front to rear. The 4-Link conversion is the headline component, but the full package includes matched springs, shocks, bracketry, and all necessary hardware for installation. Every piece is tuned to work together as a system.

One note: this system is not compatible with vehicles equipped with a manual transmission. It ships in multiple boxes, and professional installation is strongly recommended. A proper alignment after install is critical given the 4-Link geometry changes.