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. To achieve this, these systems include high-strength CNC machined ductile iron steering knuckles that replicate the suspension geometry of the F-150 Tremor and are effectively a Tremor ?conversion? for your F-150 4WD. This Stage 3 system includes vehicle-specific tuned 2.5? coilover shocks featuring remote reservoirs for exceptional cooling properties and ICON-engineered coil springs for superior vehicle ?feel? through the range of travel. These coilovers are also height adjustable for 3.5-4.5? of front lift over stock, allowing the use of larger, more aggressive wheel and tire combinations. Their combination with the ICON steering knuckles also allows for a 20% increase in wheel travel compared to other ICON F-150 coilover kits. Tubular Delta Joint Pro upper control arms on the F-150 not only add strength and durability, but help retain factory alignment spec range, increasing caster over stock and allow for the extra lift height this system provides. ICON 2.5 Aluminum Series piggyback reservoir rear shocks utilize a vehicle-specific valving and offer increased damping and head dissipation, balancing 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.
This system features upper control arms with ICON's patented Delta Joint PRO. Delta Joint PRO is ICON's innovative new suspension articulation joint which combines the durability and longevity of factory style ball joints with performance and strength that exceeds traditional motorsports-style ball joints. The Delta Joint PRO features a new rebuildable, serviceable design in which any component may be removed, inspected, and replaced without having to purchase a whole new joint. Strength and durability are improved by using a larger ball with 56% more bearing surface than our standard Delta Joint, along with improved lubrication sealing. But improved performance is at the heart of the Delta Joint PRO, with a full 90 degrees of articulation, from one extreme to the other. This represents a 14% improvement in range of motion, over the highly capable original Delta Joint, allowing for maximum bind-free suspension movement through the complete range of travel. The Delta Joint PRO is built to take the abuse, with a chromoly ball and shaft that has a bearing surface hardened to Rockwell C 55. The replaceable races are made of graphite-impregnated sintered metal, machined to the finest tolerance to provide a flawless, metal-to-metal bearing interface. We also redesigned the lubrication system, with lubricant channels that distribute grease more efficiently without extending past the bearing seal.
FEATURES & BENEFITS
High strength ductile iron steering knuckles replicate F-150 Tremor suspension geometry
Adjustable coilovers offer 3.5-4.5" of front lift height over stock
2.5 Series front coilovers with remote reservoirs for improved shock cooling
Tubular Upper Control Arms with Delta Joint Pro ball joints for added strength, durability, and alignment spec range
20% increase in front wheel travel and improved ride quality over stock with no change in towing capacity
Vehicle specific tuned front and rear shocks for superior damping and vehicle control
Corrosion resistant CAD plated coilover shock bodies with 7/8" shafts
FK rod end bearings for extended longevity and minimal deflection
High strength alloy CNC machined lower bar pin
2.5 Aluminum Series piggyback reservoir rear shocks with 7/8" hardened chromed steel shafts
6061 Aircraft grade aluminum CNC machined components
100% Bolt-on system - no cutting or welding necessary for install
TECH INFO:
OEM Wheels & Tires Fitment: Not compatible with all available OE wheel/tire combinations. Aftermarket wheels with lower offset/less backspace recommended.
Recommended Aftermarket Wheels: ICON Alloys - 17x8.5" w/ 5? Backspace / 6mm Offset
Recommended Aftermarket Wheels: ICON Alloys - 18x9" w/ 5.25" Backspace / 6mm Offset
Recommended Aftermarket Wheels: ICON Alloys - 20x9" w/ 5.625" Backspace / 16mm Offset
Recommended Aftermarket Tires: 34" x 12.50" (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
APPLICATION NOTE #129: Will Not Work With Factory Installed Electronically Controlled Suspension
APPLICATION NOTE #152: ICON Delta Joint Pro Upper Control Arms Required
TECH NOTE: Only compatible with 4-wheel drive (4WD) models
TECH NOTE: Models equipped with PowerBoost hybrid engines will have front lift height range of 3.25-4.25" over stock
TECH NOTE: Models equipped with Power-Stroke diesel engines will have front lift height range of 3-4" over stock
TECH NOTE: Not compatible with F-150 Raptor
TECH NOTE: Not compatible with models equipped with BlueCruise
TECH NOTE: Included rear shocks are compatible with 0-2" of rear lift over stock on most models
SYSTEM COMPONENTS:
91824 (QTY: 1) | 21-23 F150 TREMOR 2.5-3" 2.5 VS RR COILOVER KIT
98522DJ (QTY: 1) | 21-23 F150 TUBULAR UCA DJ PRO KIT
97721P (QTY: 1) | 21-23 F150 4WD TREMOR REAR 2.5 VS PB PAIR
94000 (QTY: 1) | 21-23 F150 4WD FRONT KNUCKLE KIT
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