17-19 Ford F-250/F-350 2.5in Stage 4 Suspension System w/ Expansion Pack

If your 2017-2019 Ford F-250 or F-350 Super Duty needs a 2.5-inch lift that handles towing, rough job sites, and highway cruising without compromise, this ICON Stage 4 system is built for exactly that balance. It is a complete suspension package, not just a spacer or spring swap, and it comes with the expansion pack included for a more compliant rear ride.

At the core of this system are dual rate coil springs that provide the initial lift, paired with ICON's 2.5 Aluminum Series CDCV (Compression Damping Control Valve) remote reservoir front shocks and CDCV piggyback reservoir rear shocks. The CDCV feature gives you an external knob with 10 settings, from soft to firm, so you can tune the ride for an empty highway cruise or a loaded towing run without crawling under the truck. Remote and piggyback reservoirs increase oil volume, which keeps the shocks running cooler during sustained heavy use.

The kit also includes an adjustable front track bar with a massive FK rod end for centering the front axle, alignment cams for adding caster, and rear leaf spring expansion packs with blocks and U-bolts. The expansion packs are a meaningful addition because they reduce axle wrap and improve the ride over the factory rear springs. ICON recommends their track bar bracket (part# 64039, sold separately) to correct bump steer geometry. For a truck that works and plays hard, this system covers the full suspension from front to rear.