21-23 Ford F150 Tremor 4WD 3.5-4.5in Stage 3 Suspension Sys Billet UCA / Leaf Pack - K93143L

ICON Vehicle Dynamics 2021-2024 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. Billet aluminum Delta Joint PRO upper control arms on the F-150 not only add strength and durability, but help retain factory alignment spec range, offer on-vehicle caster/camber adjustment, 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 heat dissipation, balancing the performance of the truck from front to rear. ICON Multi-Rate Leaf Springs are included to allow rear spring rate and ride height customization, improve ride quality, and reduce axle wrap by eliminating the factory rear blocks. Rear ride height is kept within an acceptable range using the ICON billet aluminum 1" lowering shackles. The ICON Vehicle Dynamics 2021-2024 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.

TECH NOTE: Rear springs can be configured to provide 1.5"-3.5" of rear lift or to tune ride height to compensate for added static weight in rear of vehicle

OEM Wheels & Tires Fitment: Not compatible with all available OE wheel/tire combinations. Aftermarket wheels with lower offset/less backspace recommended.

Recommended Aftermarket Tires: 34" x 12.50" (Larger tires may fit but fender trimming and modifications will be required.)

APPLICATION NOTE #166: If equipped with Dynamic Bending Headlamps and/or OnBoard Scales part # 611081 is also required

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

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

Recommended Aftermarket Wheels: ICON Alloys - 20x9" w/ 5.625" Backspace / 16mm Offset

APPLICATION NOTE #130: Equipped With Dynamic Bending Headlamps Purchase Part# 611071

Recommended Aftermarket Wheels: ICON Alloys - 17x8.5" w/ 5” Backspace / 6mm Offset

Recommended Aftermarket Wheels: ICON Alloys - 18x9" w/ 5.25" Backspace / 6mm Offset

APPLICATION NOTE #152: ICON Delta Joint Pro Upper Control Arms Required

TECH NOTE: Not compatible with models equipped with OnBoard Scales

TECH NOTE: Not compatible with models equipped with BlueCruise

TECH NOTE: Only compatible with 4-wheel drive (4WD) models

TECH NOTE: Not compatible with F-150 Raptor

Features & Benefits

• Billet Upper Control Arms with Delta Joint Pro ball joints for added strength, durability, and alignment spec range with on-vehicle adjustability
• 20% increase in front wheel travel and improved ride quality over stock with no change in towing capacity
• 2.5 Aluminum Series piggyback reservoir rear shocks with 7/8" hardened chromed steel shafts
• High strength ductile iron steering knuckles replicate F-150 Tremor suspension geometry
• Billet aluminum lowering shackles feature maintenance and noise free OE Ford bushings
• Vehicle specific tuned front and rear shocks for superior damping and vehicle control
• Reduced rear axle wrap and improved ride quality compared to stock leaf springs
• 2.5 Series front coilovers with remote reservoirs for improved shock cooling
• Corrosion resistant CAD plated coilover shock bodies with 7/8" shafts
• Adjustable coilovers offer 3.5-4.5" of front lift height over stock
• 100% Bolt-on system - no cutting or welding necessary for install
• FK rod end bearings for extended longevity and minimal deflection
• 3 user-adjustable rear spring rates for unique vehicle setups
• 6061 Aircraft grade aluminum CNC machined components
• High strength alloy CNC machined lower bar pin

Fitment has not been independently verified for your vehicle. Confirm the manufacturer application against your year, make, model, trim, and modifications before ordering.

Processing and carrier timing vary by stock status and destination. Final shipping services and costs are confirmed at checkout.

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