ICON 2023 Ford F250/F350 (Gas) 4.5in Stage 4 Suspension System - K64534

ICON's 4.5" Stage 4 System is comprised of 4.5” lift coil springs optimized for trucks equipped with gasoline engines with a dual rate design that allows for a softer initial rate for superb on-road comfort and a firmer secondary rate that increases during compression for excellent bottoming resistance and off-road performance. 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. An adjustable track bar allows for on-vehicle adjustment to fine tune track alignment as well as eliminating the deflective OE track bar bushings for an overall more rigid unit to improve the vehicles handling characteristics. ICON’s dual opposing steering stabilizer kit featuring ICON 2.0 Aluminum Series shocks improves steering damping to better control undesirable steering feedback caused by larger tires. 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 2.5 Aluminum Series remote reservoir front and rear shocks feature a vehicle specific tune for improved vehicle handling and excellent ride quality on- and off-road, with improved performance compared to 2.0 Aluminum Series shocks, and 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. 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.

Recommended Aftermarket Tires: 37" x 12.50" (Larger tires may fit but fender trimming and modifications will be required.)

APPLICATION NOTE #55: Shocks are fully serviceable. Lift heights indicated are for a stock equipped vehicle.

APPLICATION NOTE #521: Trucks equipped with Tremor package with have front lift height of 3.5" over stock

APPLICATION NOTE #155: Requires recalibration of Advanced Driver Assistance Systems (ADAS) after install

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

Recommended Aftermarket Wheels: ICON Alloys - 20x9" w/ 5.25” Backspace / 6mm Offset

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

APPLICATION NOTE #3: Will not fit F-350/F-450 Cab & Chassis models

APPLICATION NOTE #156: Springs are rated for gasoline engines

APPLICATION NOTE #157: Lift heights based on 4WD crew cab gas

APPLICATION NOTE #151: Fits single rear wheel models only

APPLICATION NOTE #1: Only fits 4WD models

OEM Wheels & Tires Fitment: Yes

Features & Benefits

• ICON 2.5 Aluminum Series remote reservoir shocks feature vehicle specific tune for superior performance and ride quality
• ICON engineered dual rate coil springs deliver 4.5" of front lift with exceptional vehicle control over varying terrain
• Remote reservoirs maintain cooler operating temperatures and consistent performance during extended off-road use
• 2.0 Aluminum Series steering stabilizers feature corrosion resistant anodized shock bodies with 5/8" shafts
• 2.5 Aluminum Series shocks feature corrosion resistant hard anodized shock bodies with 7/8" shafts
• Adjustable track bar allows fine tuning of track alignment and improves handling characteristics
• Lifetime guarantee against ICON fabricated component breakage or manufacturer defect
• 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
• Dual steering stabilizer kit offers increased steering damping
• Lifetime guarantee against coil spring breakage or sagging
• Approximately 50% increased front wheel travel over stock
• Fits 2023-2026 F-250 / F-350 4WD gasoline applications
• Shocks are fully rebuildable and re-tunable
• Stainless steel braided front brake lines
• Heavy-duty fabricated rear lift blocks

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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