This system features upper control arms with ICON's patented Delta Joint. The Delta Joint is a heavy duty high angle ball joint that combines the durability of a ball joint with the performance characteristics of a traditional uniball. While the industry standard uniball does a great job of allowing the control arms of a vehicle to articulate with little bind, they do have an inherent weakness that leaves more to be desired when used in a daily driven application - exposure to the elements. The Delta Joint features a zinc plated housing providing the first layer of corrosion resistance, while a tough grease seal keeps potentially harmful elements out of the inner workings of the joint. Metal on metal construction and a greasable design increase the longevity of the Delta Joint while at the same time allowing for noise-free operation. What makes the Delta Joint unique is that it brings the best of both worlds to ICON upper control arms with features that make it more robust than a uniball, and at the same time capable of greater angularity than a typical ball joint.. ICON Vehicle Dynamics 2021-2023 Ford F-150 4WD suspension systems are designed with maximum performance and the serious driver in mind. ICON engineers’ primary focus is to increase wheel travel and damping ability, which translates into outstanding vehicle control and ride quality both on and off-road. The Stage 3 system includes vehicle-specific tuned 2.5” coilover shocks featuring remote reservoirs for exceptional cooling properties and ICON-engineered Eibach coil springs for superior vehicle “feel” through the range of travel. These coilovers are also height adjustable from 0-2.75” allowing the use of larger, more aggressive wheel and tire combinations. ICON 2.5 Aluminum Series piggyback reservoir rear shocks utilize a vehicle-specific valving that balances the performance of the truck from front to rear. The ICON Vehicle Dynamics 2021-2023 F-150 4WD Stage 3 suspension system is an excellent choice for those drivers looking to enhance the capabilities of their pickup on the road as well as in the dirt.. Stage 3 includes 2.5” coilovers with remote reservoirs with height adjustability from 0-2.75” of lift. ICON 2.5 Series piggyback rear rshocks balance the performance of the truck from front to rear.. 2.5 Aluminum Series rear shocks feature hard anodized, one-piece impact extruded aluminum cylinders for excellent corrosion resistance and consistent finish. APPLICATION NOTE #179: Only compatible with stock or original ICON Delta Joint UCAs. Not compatible with ICON Delta Joint Pro UCAs.. 2.5 Series front coilovers with remote reservoirs for superior damping and vehicle control along with improved shock cooling. Recommended Aftermarket Tires: 33" x 11.50" (Larger tires may fit but fender trimming and modifications will be required.). APPLICATION NOTE #55: SHOCKS ARE FULLY SERVICEABLE. COILOVER HEIGHTS INDICATED ARE FOR A STOCK EQUIPPED VEHICLE. TECH NOTE: Models equipped with Power-Stroke diesel engines will have lift height range of 0-2.25" over stock. TECH NOTE: Models equipped with PowerBoost hybrid engines will have lift height range of 0-2.5" over stock. APPLICATION NOTE #129: Will Not Work With Factory Installed Electronically Controlled Suspension. TECH NOTE: Included rear shocks are compatible with 0-1" of rear lift over stock on most models. Vehicle specific tuned front and rear shocks for superior damping and vehicle control. Recommended Aftermarket Wheels: ICON Alloys - 20x9" w/ 5.625" Backspace / 16mm Offset. Increased wheel travel and ride quality over stock with no change in towing capacity. Recommended Aftermarket Wheels: ICON Alloys - 17x8.5" w/ 5” Backspace / 6mm Offset. Recommended Aftermarket Wheels: ICON Alloys - 18x9" w/ 5.25" Backspace / 6mm Offset. 2021 FORD F-150 4WD 0-2.75" LIFT STAGE 3 SUSPENSION SYSTEM WITH BILLET UCA. Corrosion resistant CAD plated coilover shock bodies with 7/8" shafts. Icon 21-23 Ford F150 (4WD) Stage 3 Suspension System w/ Billet UCA. 2021 FORD F150 4WD 0-2.75" STAGE 3 SUSPENSION SYSTEM W BILLET UCA. 100% Bolt-on system - no cutting or welding necessary for install. FK rod end bearings for extended longevity and minimal deflection. TECH NOTE: Not compatible with F-150s equipped with BlueCruise. TECH NOTE: Not compatible with F-150 Tremor or F-150 Raptor. TECH NOTE: Only compatible with 4-wheel drive (4WD) models. 21-23 FORD F150 4WD 0-2.75" STAGE 3 SUSPENSION SYSTEM. 6061 Aircraft grade aluminum CNC machined components. Adjustable coilovers from 0-2.75" of lift height. High strength alloy CNC machined lower bar pins. 21 F-150 4WD 0-2.75" STG 3 SUSP ALUM. OEM Wheels & Tires Fitment: Yes. Ships in multiple boxes. Suspension Lift Kit. SUSPENSION SYSTEM. K93113

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov