4 5.5" ICON Suspension Stage 4 Coilover Conversion System Radius Arm ICON K63155 ICN 4 5.5" Stage 5 Coilover Conversion Kit (17 22 Ford F Icon K63106 Stage 6 2.5 3" 2005 2016 Ford F250 F350 4wd Coilover Icon K64553 Stage 4 4.5" 2008 2010 Ford F250 F350 4wd Suspension Lift 4 5.5" ICON Suspension Stage 4 Coilover Conversion System Radius Arm. Designed to provide a height adjustable option to the extremely popular ICON Vehicle Dynamics 4. 5 Inch Ford Super Duty Suspension Systems, these coilover conversions provide excellent on road ride quality and off road performance while at the same time allowing for end user ride height adjustability. Features and Benefits: This Stage 5 system sees the inclusion of the ICON Vehicle Dynamics Ford Super Duty Radius Arm System that feature a sealed pivot bushing that minimizes road feedback and ensures a long life and quiet operation. Additionally, their fabricated, fully boxed design ensures strength and utilizes a profile optimized for tire clearance at full steering lock, making a 37 Inch tall tire clear without coming in contact with the radius arm. Eibach coil springs guaranteed for life against sagging or breakage Corrosion resistant CAD plated coilover shock body with 7 8 Inch shaft Rear shocks feature one piece impact extruded aluminum cylinders for excellent corrosion resistance and consistent finish FK Rod End bearings for extended longevity and minimal deflection Bolt in system fits in OE coil bucket location Ride height adjustable coilovers (4 5. 5 Inch of lift over stock) Increased wheel travel and ride quality over stock 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 revalveable Coilover conversion allows for addition of secondary shock Fabricated radius arms with drop brackets offer on vehicle caster adjustment, increased strength, and improved tire clearance at steering lock Details Bushings Included: Yes Coils Quantity Front: 2. 0 Grade Type: Performance Maximum Lift: 5. 5 Inch Mounting Hardware Included: Yes Oem Wheels & Tires Fitment: Yes Recommended Aftermarket Tires: 35 Inch X 12. 50 Inch (Larger Tires May Fit But Fender Trimming And Modifications Will Be Required.) Recommended Aftermarket Wheels: Icon Alloys 20x9 Inch W 5. 25 Inch Backspace 6mm Offset, Icon Alloys 17x8. 5 Inch W 5 Inch Backspace 6mm Offset, Icon Alloys 18x9 Inch W 5. 25 Inch Backspace 6mm Offset Shocks Included: Yes Spring Color: Black Spring Material: Steel Add On Part: 614700 2. 0 Shock Boot Kit (Each), 198001 Billet Spanner Wrench Kit, 64039 08 25 FSD Track Bar Bump Steer Bracket Kit, 198000 2 Pin Coilover Spanner Wrench Kit, 191014 . 25 Inch Collar Spanner Pin Wrench