ICON: 4-5.5″ Lift Stage 1 Coilover Conversion System – 2023-25 Ford F-250/F-350 Super Duty 4WD

Description

This ICON Vehicle Dynamics 4-5.5″ coilover conversion system is a great way to lift your 4WD 2023-2025 Ford F-250/F-350 Super Duty while drastically improving ride quality and performance and allowing fitment of larger, more aggressive wheel and tire combinations. This entry level system is perfect for on-road and towing use, as well as mild off-road use like job site duty and washboard gravel roads.

ICON’s 4-5.5″ Lift Stage 1 Coilover Conversion System features 2.5 Series coilovers that provide superb on-road comfort and off-road performance while at the same time allowing for end-user ride height adjustability. These bolt-in coilovers also allow the option to mount secondary shocks in the stock location, effectively doubling shock damping ability. Their remote reservoirs greatly increase shock oil volume and heat dissipation surface area to resist overheating and cavitation under hard use, which can lead to damper fade. Fabricated radius arm drop brackets correct suspension geometry and ensure proper wheel alignment with the OE radius arms. The fabricated track bar drop bracket allows the axle to be properly centered under the frame and reduces road feedback throughout the steering system with improved on- and off-road manners thanks to the elimination of bump steer. Heavy-duty fabricated 5″ rear blocks and U-bolt kit lift the rear of the vehicle and are designed to withstand heavy towing/hauling duty as well as the stresses of aggressive off-road use. ICON 2.0 Aluminum Series rear shocks feature a vehicle specific tune for improved vehicle handling and excellent ride quality on- and off-road. The included box kit includes fabricated front sway bar drop brackets to prevent bind, heavy-duty aluminum bump stop spacers, and high quality stainless steel extended brake lines.

This suspension system features high quality CNC machined, laser cut, and brake formed components and with the endless hours ICON has spent testing and tuning our suspension components and shock absorbers as a complete system, you can rest assured you have the best suspension solution on the market.

Key features:
• Fits 2023-2025 F-250 / F-350 4WD applications
• Bolt-in system fits in OE coil bucket location
• Ride height adjustable ICON 2.5 Series coilovers provide 4-5.5″ of front lift
• Vehicle-specific shock valving provides unparalleled ride quality and control
• ICON 2.0 Aluminum Series rear shocks
• Increased wheel travel and ride quality over stock
• Radius arm drop brackets correct geometry and caster for optimal alignment specs
• Track bar drop bracket reduces track bar angle and corrects bump steer geometry
• Stainless steel braided front brake lines
• Heavy-duty fabricated rear lift blocks
• Corrosion resistant CAD plated coilover shock bodies with 7/8″ shafts
• Corrosion resistant anodized rear shock bodies with 5/8″ shafts
• Shocks are fully rebuildable and re-tunable
• Lifetime guarantee against coil spring breakage or sagging
• Lifetime guarantee against ICON fabricated component breakage or manufacturer defect

Installation & fitment notes:
• OEM Wheels & Tires Fitment: Yes
• Recommended Aftermarket Tires: 37″ x 12.50″ (Larger tires may fit but fender trimming and modifications will be required.)
• Recommended Aftermarket Wheels: ICON Alloys – 17×8.5″ w/ 5″ Backspace / 6mm Offset
• Recommended Aftermarket Wheels: ICON Alloys – 18×9″ w/ 5.25″ Backspace / 6mm Offset
• Recommended Aftermarket Wheels: ICON Alloys – 20×9″ w/ 5.25″ Backspace / 6mm Offset
• APPLICATION NOTE #1: Only fits 4WD models
• APPLICATION NOTE #3: Will not fit F-350/F-450 Cab & Chassis models
• APPLICATION NOTE #55: Shocks are fully serviceable. Lift heights indicated are for a stock equipped vehicle.
• APPLICATION NOTE #88: Removal of the coil centering cup in factory coil bucket required for installation
• APPLICATION NOTE #115: Lift heights based on 4WD crew cab diesel
• APPLICATION NOTE #120: Secondary shock options available, contact ICON for more details
• APPLICATION NOTE #151: Fits single rear wheel models only
• APPLICATION NOTE #155: Requires recalibration of Advanced Driver Assistance Systems (ADAS) after install
• TECH NOTE: Super Duty diesel models without Tremor package will have front lift height range of 4-5.5″ over stock
• TECH NOTE: Super Duty diesel models equipped with Tremor package will have front lift height range of 3-4.5″ over stock
• TECH NOTE: Super Duty gas models without Tremor package will have front lift height range of 4.5-6″ over stock
• TECH NOTE: Super Duty gas models equipped with Tremor package will have front lift height range of 3.5-5″ over stock
• TECH NOTE: If installing with ICON 2.5 Series secondary shocks, reservoir doubler kit part number 611003 is also required
• TECH NOTE: Due to tight clearances and varying placement of vehicle’s wiring harness in the upper front-passenger wheel well area, installer must ensure adequate clearance between the harness, coilover reservoir, and other components to prevent chafing/damage to wire harness. If adequate clearance cannot be achieved, please contact ICON Customer Service.

Technical data:
• Product type: Suspension System
• Part number: K63171
• Series / label: ICON 23-25 FORD F250/F350 4-5.5″ STAGE 1 COILOVER CONVERSION SYSTEM
• Suspension mode: Passive
• 6″ lift height
• Front shock body: 2.5″
• Rear shock body: 2″
• Front reservoir: Remote
• Rear reservoir: Internal
• Adjustable damping: no
• Adjustable compression: no
• Adjustable rebound: no

Vehicle applications (fitment):
Year Make Model Submodel Notes
——— —- —————- ————- —–
2023–2025 Ford F-250 Super Duty King Ranch
2023–2025 Ford F-250 Super Duty Lariat
2023–2024 Ford F-250 Super Duty Limited
2023–2025 Ford F-250 Super Duty Platinum
2025 Ford F-250 Super Duty Platinum Plus
2023–2025 Ford F-250 Super Duty XL
2023–2025 Ford F-250 Super Duty XLT
2023–2025 Ford F-350 Super Duty King Ranch
2023–2025 Ford F-350 Super Duty Lariat
2023–2024 Ford F-350 Super Duty Limited
2023–2025 Ford F-350 Super Duty Platinum
2023–2025 Ford F-350 Super Duty XL
2023–2025 Ford F-350 Super Duty XLT