2021-2025 Ford F-150 4WD 3.5-4.5" Lift Stage 4 Suspension System Billet UCA w/ Leaf Packs - ICON K93144L
ICON Vehicle Dynamics 2021-2025 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 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. Billet aluminum Delta Joint PRO upper control arms not only add strength and durability but help retain factory alignment specs, offer on-vehicle caster/camber adjustment, and allow for the extra lift height this system provides. ICON 2.5 Aluminum Series CDCV piggyback reservoir rear shocks utilize 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 restrict 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 load Option #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
Features:
Attributes:
- Add-On Part: 191009 - ICON LONG 2.5 COIL WRAP W/LOGO (14.5-15.5)
- Add-On Part: 611071 - 2021-2023 F150 DYNAMIC HEADLAMP KIT
- Add-On Part: 191014 - .25" COLLAR SPANNER PIN WRENCH
- 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
- 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: 4.5IN
- Maximum Lift Rear: 3.5IN
- Minimum Lift Front: 3.5IN
- Minimum Lift Rear: 1.5IN
- 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
Notes:
- 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 #130: Equipped With Dynamic Bending Headlamps Purchase Part# 611071
- APPLICATION NOTE #152: ICON Delta Joint Pro Upper Control Arms Required
ICON offers a lifetime warranty on all non-wearable components, springs, and weldments.
ICON's shock warranty is limited to manufacture defect for 12 months from the date of purchase.
The ICON Delta Joint features a 5-year limited warranty (when used with a complete ICON suspension system).
The ICON Delta Joint Pro features a 12 month limited warranty (when used with a complete ICON suspension system).
ICON Alloy warranty is limited to manufacture defect for 12 months from the date of purchase and feature 12-month warranty on chrome finish surfaces as well as a 24-month warranty on painted surfaces.
Please note that the warranty applies to the parts only. Labor, alignment etc. is not covered under this warranty.
Contact ICON tech support for more details, (951) 689-ICON.
