The ICON 4.5" Stage 4 suspension system for 2017–2019 Ford F-250/F-350 Super Duty includes the ICON 4-Link kit to eliminate articulation bind and maintain positive caster through travel. Combined with dual-rate coil springs, CDC Valve 2.5 piggyback shocks and adjustable track bar, the Stage 4 system increases front wheel travel, provides fine compression adjustment, and improves overall ride control and durability for demanding on- and off-road use.
ICON 2017+ Ford F-250/F-350 4.5in Stage 4 Suspension System