overview
This ICON Vehicle Dynamics 4.5” suspension system is a great way to lift your 4WD 2023 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 Stage 4 system is perfect for on-road and towing use, as well as job site duty washboard gravel roads, and more aggressive off-road use.
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.
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.
features & Benefits
- Fits 2023 F-250 / F-350 4WD gasoline applications
- ICON engineered dual rate coil springs deliver 4.5" of front lift with exceptional vehicle control over varying terrain
- ICON 2.5 Aluminum Series remote reservoir shocks feature vehicle specific tune for superior performance and ride quality
- Remote reservoirs maintain cooler operating temperatures and consistent performance during extended off-road use
- Approximately 50% increased front wheel travel 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
- Adjustable track bar allows fine tuning of track alignment and improves handling characteristics
- Dual steering stabilizer kit offers increased steering damping
- Stainless steel braided front brake lines
- Heavy-duty fabricated rear lift blocks
- 2.5 Aluminum Series shocks feature corrosion resistant hard anodized shock bodies with 7/8" shafts
- 2.0 Aluminum Series steering stabilizers feature corrosion resistant anodized 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
download installation guide
Tech Info:
- 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 - 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/ 5.25” Backspace / 6mm Offset
- APPLICATION NOTE #55: Shocks are fully serviceable. Lift heights indicated are for a stock equipped vehicle.
- APPLICATION NOTE #151: Fits single rear wheel models only
- APPLICATION NOTE #156: Springs are rated for gasoline engines
- APPLICATION NOTE #157: Lift heights based on 4WD crew cab gas
- TECH NOTE: Will not fit 2024 models
- TECH NOTE: Trucks equipped with Tremor package with have front lift height of 3.5" over stock
- TECH NOTE: Will not fit F-350 Cab & Chassis models
System Components:
- 64051 (QTY: 1) | 23-24 FSD FRONT 4.5" BOX KIT
- 64013 (QTY: 1) | 23-24 FORD F-250/F-350 FRONT 4.5" GAS DUAL RATE SPRING KIT
- 64039 (QTY: 1) | 08-24 FSD TRACK BAR BUMP STEER BRACKET KIT
- 64046 (QTY: 1) | 23-24 FSD RADIUS ARM DROP KIT
- 64038 (QTY: 1) | 17-24 FSD ADJ TRACKBAR KIT
- 65002 (QTY: 1) | 23-24 FSD DUAL STABILIZER KIT
- 36511 (QTY: 2) | 99-24 FSD 4WD STABILIZER(DUAL OPPOSING) 2.0 VS IR
- 195275 (QTY: 1) | 99-24 FSD 5" BLOCK KIT
- 67003 (QTY: 1) | 11-24 FSD REAR 15" U-BOLT KIT
- 67811P (QTY: 1) | 23-24 FSD 4.5" FRONT 2.5 VS RR PAIR
- 37705P (QTY: 1) | 99-24 FSD 0-3" REAR 2.5 VS PB PAIR