ICON Vehicle Dynamics 21-23 FORD F150 4WD 3.5-4.5" STAGE 4 SUSPENSION SYS TUBULAR UCA / LEAF PACK - K93144TL

ICON Vehicle Dynamics 2021-2023 Ford F-150 4WD suspension systems are designed with maximum performance and the serious driver in mind. ICON's primary focus is to increase wheel travel and damping ability, which translates into outstanding vehicle control and ride quality. 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 4 system includes vehicle-specific tuned 2.5” coilover shocks featuring CDCV equipped remote reservoirs for exceptional cooling properties and ICON-engineered coil springs for superior vehicle “feel” through the range of travel. These coilovers are height adjustable for 3.5-4.5” of front lift, allowing the use of larger, more aggressive wheel and tire combos. Their combination with the ICON steering knuckles also allows for a 20% increase in wheel travel compared to other ICON F-150 kits. Tubular Delta Joint Pro upper control arms not only add strength and durability, but help retain factory alignment specs, increasing caster over stock and allow for the extra lift height this system provides. ICON 2.5 Aluminum Series CDCV 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. The included ICON CDC Valves are externally adjustable valves that restricts oil flow into the reservoir which creates 10 levels of compression damping force ranges. ICON Multi-Rate Leaf Springs 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 2021-2023 F-150 4WD Stage 4 suspension system is an excellent choice for those looking to enhance the capabilities of their pickup.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.MULTI-RATE INFO (with ICON Billet Shackles):Option #1 (as shipped)+1.50" rear lift height over stock (unloaded)Option #2+20% spring rate over Option #1+2.75" rear lift height over stock (unloaded)+1.50" rear lift height over stock w/ 400lb constant loadOption #3+40% spring rate over option #1+3.50" rear lift height over stock (unloaded)+1.00" rear lift height over stock w/ 850lb constant load

High strength ductile iron steering knuckles replicate F-150 Tremor suspension geometryAdjustable coilovers offer 3.5-4.5" of front lift height over stock2.5 Series front coilovers with remote reservoirs for improved shock coolingTubular Upper Control Arms with Delta Joint Pro ball joints for added strength, durability, and alignment spec range20% increase in front wheel travel and improved ride quality over stock with no change in towing capacityVehicle specific tuned front and rear shocks for superior damping and vehicle controlAll shock absorbers equipped with CDC Valves for 10 settings of compression damping adjustment, from soft to hardCorrosion resistant CAD plated coilover shock bodies with 7/8" shaftsFK rod end bearings for extended longevity and minimal deflectionHigh strength alloy CNC machined lower bar pin2.5 Aluminum Series piggyback reservoir rear shocks with 7/8" hardened chromed steel shafts6061 Aircraft grade aluminum CNC machined components3 user-adjustable rear spring rates for unique vehicle setupsReduced rear axle wrap and improved ride quality compared to stock leaf springsBillet aluminum lowering shackles feature maintenance and noise free OE Ford bushings100% Bolt-on system - no cutting or welding necessary for install

Add-On Part: 611081 - F-SERIES DYNAMIC HEADLAMP REAR SENSOR KIT
Add-On Part: 198001 - BILLET SPANNER WRENCH KIT
Add-On Part: 198000 - 2 PIN COILOVER SPANNER WRENCH KIT
Add-On Part: 191013 - NIPPLE GREASING ADAPTER KIT
Add-On Part: 191009 - ICON LONG 2.5 COIL WRAP W/LOGO (14.5-15.5)
Adjustable Damping: Yes
Bushings Included: Yes
California Proposition 65: WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.
Coils Quantity Front: 2
Damping Adjustment Type: Manual
Front Spring Rate Type: Linear
Grade Type: Performance
Leaf Spring Leaf Quantity: 8
Maximum Lift Front: 4.5
Maximum Lift Rear: 3.5
Minimum Lift Front: 3.5
Minimum Lift Rear: 1.5
Mounting Hardware Included: Yes
OEM Wheels & Tires Fitment: Not compatible with all available OE wheel/tire combinations. Aftermarket wheels with lower offset/less backspace recommended.
Rear Spring Rate Type: Variable
Recommended Aftermarket Tires: 34" x 12.50" (Larger Tires May Fit but Fender Trimming and Modifications will be Required)
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 Wheels: ICON Alloys - 17x8.5" w/ 5” Backspace / 6mm Offset
Shocks Included: Yes
Spring Color: Black
Spring Material: Steel
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;APPLICATION NOTE #166: If equipped with Dynamic Bending Headlamps and/or OnBoard Scales part # 611081 is also 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: 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;TECH NOTE: Reduction in rear spring rate may reduce accuracy of OnBoard Scales, if equipped

ICON 21-23 FORD F150 4WD 3.5-4.5" STAGE 4 SUSPENSION SYS TUBULAR UCA / LEAF PACK