The Icon K63141 2.5-3" Stage 1 Coilover Conversion System from CDP is the suspension upgrade your 2017-2023 Ford F-250/350 6.7L Powerstroke 4WD needs. Icon's 2.5 VS Series Remote Reservoir Bolt-In Coilover Conversion Kit will add a new level of performance and adjustability to 2017-2023 F-250 and F-350 trucks. The advantage of utilizing a coilover conversion kit is that they have been designed to increase the overall damping ability of the vehicle while at the same time allowing for user-defined ride height adjustment. The 2.5" Remote Reservoir Coilover featured in these kits is based off of Icon's 2.5 VS Series shock line - meaning that features like Eibach coil springs, FK Rod End bearings, and vehicle-specific valving come standard. Quality machined components and a fully serviceable design make for a product that will stand the test of time, yet retain the ability to be rebuilt or re-valved as necessary. Features: Bolt-in system fits in OE coil bucket location Ride height adjustable coilovers provide 2.5-3" or 3.25-3.75" of lift, depending on year model of truck Decreased body roll and improved on and off-road ride dynamics Vehicle-specific shock valving provides unparalleled ride quality and control Shocks are fully rebuildable and Re-valvable Coilover conversion allows for addition of secondary shock Corrosion resistant CAD plated coilover shock body with 7/8" shaft Eibach coil springs guaranteed for life against sagging or breakage FK Rod End bearings for extended longevity and minimal deflection Notes: OEM Wheels & Tires Fitment: Yes Recommended Aftermarket Wheels: Icon Alloys | 17x8.5" w/ 5.00" Backspace / 6mm Offset Recommended Aftermarket Wheels: Icon Alloys | 18x9" w/ 5.25" Backspace / 6mm Offset Recommended Aftermarket Wheels: Icon Alloys | 20x9" w/ 5.25" Backspace / 6mm Offset Recommended Aftermarket Tires: 35" x 12.50" (Larger tires may fit but fender trimming and modifications will be required.) Application Note #6: Springs Are Rated For Diesel Engines Only Application Note #30: An Adjustable Track Bar May Be Needed To Realign The Axle From Left To Right, Or To Add Additional Strength Application Note #55: Shocks Are Fully Serviceable. Coilover Heights Indicated Are For A Stock Equipped Vehicle Application Note #88: Removal Of The Coil Centering Cup In Factory Coil Bucket Required For Installation. Application Note #120: Secondary Shock Options Available Tech Note: 2017-2019 Super Duty Models Will Have Front Lift Height Range Of 2.5-3" Over Stock Tech Note: 2020-2022 Super Duty Models Without Tremor Package Will Have Front Lift Height Range Of 3.25-3.75" Over Stock Tech Note: 2020-2022 Super Duty Models Equipped With Tremor Package Will Have Front Lift Height Range Of 2.25-2.75" Over Stock Tech Note: Brake Line Kit (Part # 61111) Is Optional For End Users Who Do Not Want To Bend The Factory Steel Lines Or Are Looking For A Braided Stainless Upgrade (Not Necessary For Complete Install) Tech Note: Included Rear Shocks Are Compatible With 0-3" Of Rear Lift Over Stock Note: Installation Manuals:I61720 Installation ManualI66516 Installation Manual