ICON Stage 1 2.5-Inch Lift Suspension System for 2023-2026 Ford F-250/F-350 Super Duty 4WD Gas

The ICON Vehicle Dynamics Stage 1 Suspension System delivers a 2.5-inch front lift on 2023-2026 Ford F-250/F-350 Super Duty 4WD gas-engine trucks, pairing fabricated radius arms, dual-rate coil springs, and ICON 2.0 Aluminum Series internal-reservoir shocks front and rear with a rear leaf spring expansion pack, all in a 100% bolt-on package requiring no drilling, cutting, or welding. Rear lift is +0.5 inch on F-250 and -0.5 inch on F-350 compared to stock. Trucks equipped with the Tremor package see 1.5 inches of front lift over stock.

Shipping: ICON parts ship direct from ICON Vehicle Dynamics, mostly by UPS Ground. Lead times vary by part and some items are built to order, so please allow extra time. We email tracking as soon as your order ships.

Radius Arms Built for Clearance and Caster Control

The fabricated, fully boxed radius arms include a sealed pivot bushing that absorbs road feedback before it reaches the cab, reducing noise and extending service life. The arm profile is optimized so a 37-inch tall tire clears the radius arm at full steering lock without contact, a meaningful advantage when fitting larger rubber without cutting fenders. On-vehicle caster adjustment lets the installer dial geometry to the truck's specific load and use case rather than accepting a fixed setting.

Shocks Tuned as a System, Not as Individual Parts

The ICON 2.0 Aluminum Series front shocks carry internal reservoirs that keep fluid cooler and more consistent during sustained off-road use or loaded towing runs. Rear shocks are also internal-reservoir units, matched to the leaf spring expansion packs for a compliant ride with reduced axle wrap. Because the springs, shocks, and radius arms were developed and tuned together, the system maintains factory towing capacity while reducing body roll compared to stock. All shocks are fully rebuildable and re-tunable, so the investment extends well beyond the initial install.

Dual-Rate Springs and Rear Expansion Packs

The front dual-rate coil springs are rated specifically for gasoline-engine Super Duty trucks and carry a lifetime guarantee against sagging or breaking. The rear leaf spring expansion packs, blocks, and U-bolts replace the OE rear blocks and add compliance without sacrificing load-carrying ability. No driveshaft modifications are required for this system.

Features

• 2.5-inch front lift: dual-rate coil springs rated for gas-engine Super Duty trucks; 1.5 inches on Tremor-equipped trucks
• Fabricated radius arms: fully boxed design with sealed pivot bushing, on-vehicle caster adjustment, and 37-inch tire clearance at full steering lock
• ICON 2.0 Aluminum Series shocks: internal-reservoir front and rear units, fully rebuildable and re-tunable
• Rear leaf spring expansion packs: blocks and U-bolts included for reduced axle wrap and more compliant ride
• 100% bolt-on install: no drilling, cutting, welding, or driveshaft modification required
• Lifetime spring guarantee: springs warranted against sagging or breaking

Specifications

Who This Is For and Isn't

This system suits 2023-2026 Ford F-250/F-350 Super Duty owners running a 4WD gasoline-engine truck on a single rear wheel who want a 2.5-inch front lift with improved off-road capability, larger tire fitment, and maintained towing capacity for overlanding, job-site, or mixed on- and off-road use.

This system does not fit diesel-engine Super Duty trucks, dual rear wheel (DRW) configurations, F-350 Cab and Chassis models, or any 2WD variant. It is not compatible with all OE wheel and tire combinations; aftermarket wheels with lower offset and less backspace are recommended. Trucks equipped with Advanced Driver Assistance Systems (ADAS) require recalibration after installation. Trucks with OnBoard Scales require an additional sensor bracket (part 66203). Trucks with Dynamic Bending Headlamps and/or OnBoard Scales also require part 611081. The Tremor package reduces front lift to 1.5 inches over stock.

Common Questions

Does this system fit diesel-powered F-250 and F-350 trucks?

No. The ICON Stage 1 Suspension System for 2023-2026 Ford F-250/F-350 Super Duty is designed specifically for gasoline-engine trucks. The dual-rate coil springs are rated for gas engines, and the system is not validated for diesel powertrains. A separate ICON system is required for diesel-equipped Super Duty trucks.

Will I need to modify my driveshaft or brake lines?

No driveshaft modifications are required for this Stage 1 system. The brake line kit (ICON part 61111) is optional and not required to complete the install; it is available for owners who prefer not to bend the factory steel lines or want a braided stainless upgrade.

What tire size fits after installing this system?

ICON recommends 35x12.50-inch tires with this Stage 1 system. A 37x12.50-inch tire may fit, but fender trimming and additional modifications are required. The fabricated radius arm profile is designed so a 37-inch tire clears the arm at full steering lock without contact, but overall fitment depends on wheel offset and fender clearance.

Do I need to recalibrate my truck's driver assistance systems after installing this suspension?

Yes. Trucks equipped with Advanced Driver Assistance Systems (ADAS) require recalibration after installing this Stage 1 suspension system. Trucks with OnBoard Scales also require an additional sensor bracket (ICON part 66203), and trucks with Dynamic Bending Headlamps and/or OnBoard Scales additionally require part 611081.

What components are included in the Stage 1 system?

The ICON Stage 1 system includes front dual-rate coil springs, a fabricated radius arm system, two ICON 2.0 Aluminum Series front internal-reservoir shocks, two ICON 2.0 VS internal-reservoir rear shocks, two rear leaf spring expansion packs, a 12-inch U-bolt kit, a 1-inch cast block kit, and a rear bump stop spacer kit.