ICON 2020-2022 Ford F250/F350, 4.5" Lift, Stage 4 Suspension System System They also feature a unique

They also feature a unique internal Bump Zone that creates an additional 20% of damping force to help better control hard bottom outs

making a 37” tall tire clear without coming in contact with the radius arm

creates a significant increase in damping force

Our engineers have spent countless hours under these trucks and behind the wheel developing some of the most refined suspension systems available

and "ICON-optimized" dimensions

ICON 2020-2022 Ford F250/F350, 4.5" Lift, Stage 4 Suspension System System They also feature a uniqueThe 2020 2022 Ford Super Duty trucks sit at a lower ride height than 2017 2019 models, and although many of the 2017 2019 components will physically fit 2020 models, the resulting ride height is often taller than desired. So, engineers at ICON designed new progressive rate coil springs that achieve the correct advertised lift heights while still retaining the great ride quality, predictability, and performance that our Super Duty systems are known