2023-2025 Ford F-250/F-350 Super Duty 4WD Diesel 4.5 Inch Lift Stage 4 Suspension System W/ Radius Arms & Expansion Packs - ICON Vehicle Dynamics - K65903RL

This ICON Vehicle Dynamics 4.5 Inch suspension 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 Stage 4 system is perfect for on-road and towing use, as well as job site duty, washboard gravel roads, and general off-road adventures.

Features and Benefits:


ICON's 4.5 Inch Stage 4 System is comprised of 4.5 Inch lift coil springs optimized for trucks equipped with diesel 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 arms offer significantly more strength over the OE units and feature built in caster cams for on-vehicle caster adjustment, maintenance free bushings, and improved tire clearance at full steering lock, all while eliminating the need for drop brackets and thus raising ground clearance under the chassis. 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. Leaf spring expansion packs provide 2 inch of rear lift over stock with improved ride quality and small bump compliance while also reducing axle wrap compared to lift blocks. 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.

Fits 2023-2025 F-250 / F-350 4WD diesel applications

ICON engineered dual rate coil springs deliver 4.5 Inch 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 Percent increased front wheel travel over stock

Fabricated radius arms provide increased strength. on vehicle caster adjustment, improved tire clearance at steering lock, and higher ground clearance

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

Leaf spring expansion packs improve ride quality and provide 2 inch of rear lift

2.5 Aluminum Series shocks feature corrosion resistant hard anodized shock bodies with 7/8 Inch shafts

2.0 Aluminum Series steering stabilizers feature corrosion resistant anodized shock bodies with 5/8 Inch 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


Details


Active Or Passive Suspension: Passive

Adjustable Compression: No

Adjustable Control Arm: Yes

Adjustable Damping: No

Adjustable Rebound: No

Bushings Included: Yes

Coil Quantity Front: 2.0

Coil Spring Color: Black

Coil Spring Material: Steel

Coils Quantity Front: 2.0

Front Reservoir Style: Remote

Front Shock Body Diameter: 2.5

Front Spring Rate Type: Progressive Dual Rate

Grade Type: Performance

Leaf Spring Color: Black

Leaf Spring Leaf Quantity: 7.0

Leaf Spring Material: Steel

Maximum Lift: 4.5 Inch

Maximum Lift Front: 4.5 Inch

Maximum Lift Height Front: 4.5 Inch

Maximum Lift Height Rear: 2.0 Inch

Maximum Lift Rear: 2.0 Inch

Minimum Lift Front: 3.5 Inch

Mounting Hardware Included: Yes

Oem Wheels & Tires Fitment: Yes

Rear Reservoir Style: Piggyback

Rear Shock Body Diameter: 2.5

Recommended Aftermarket Tires: 37 Inch X 12.50 Inch (Larger Tires May Fit But Fender Trimming And Modifications Will Be Required.)

Recommended Aftermarket Wheels: Icon Alloys - 17x8.5 Inch W/ 5 Inch Backspace / 6mm Offset, Icon Alloys - 18x9 Inch W/ 5.25 Inch Backspace / 6mm Offset, Icon Alloys - 20x9 Inch W/ 5.25 Inch Backspace / 6mm Offset

Shocks Included: Yes

Spring Color: Black

Spring Material: Steel

Add On Part: 252012 - -4 To -10 Hose Shield Kit, 191014 - .25 Inch Collar Spanner Pin Wrench, 66204 - 23-25 FSD Icon Radius Arm Scale Mount Kit 4.5 Inch, 611081 - F-Series Dynamic Headlamp Rear Sensor Kit



Detailed Fitment Results
Year Make Model Engine Fuel 2023 Ford F-350 Super Duty 6.7L DIESEL 2023 Ford F-250 Super Duty 6.7L DIESEL 2024 Ford F-350 Super Duty 6.7L DIESEL 2024 Ford F-250 Super Duty 6.7L DIESEL 2025 Ford F-350 Super Duty 6.7L DIESEL 2025 Ford F-250 Super Duty 6.7L DIE…