ICON Vehicle Dynamics Ford Super Duty / Excursion 4WD Diesel Front 6" Lift Leaf Spring

The ICON Vehicle Dynamics Front Leaf Spring is a complete replacement leaf spring pack delivering 6 inches of front lift for 2000–2004 Ford F-250/F-350 Super Duty 4WD Diesel and 2000–2005 Ford Excursion 4WD Diesel applications. Sold individually; two springs are required per vehicle. Three additional kits are required for installation: Front Box Kit (part 31020), Bump Stop Spacer Kit (part 33100), and U-Bolt Kit (part 37001).

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.

Progressive Design for On- and Off-Road Use

The thin, multi-leaf progressive design means the spring rate increases gradually as load and suspension travel increase. On paved roads, the pack stays compliant under lighter loads, reducing the harsh, choppy ride common with stiffer lifted-truck springs. Under heavier loads or in demanding off-road terrain, the progressive rate firms up to maintain control and composure. The result is a front suspension that works across a wider range of conditions without requiring a compromise between street comfort and trail capability.

Broad Shock Compatibility

These leaf springs are designed to work with a wide range of shock absorber options, so the spring pack can serve as the foundation of a custom suspension build rather than locking the buyer into a single shock choice. OEM wheel and tire sizes fit without modification. Recommended aftermarket wheel fitments include ICON Alloys 17x8.5-inch with 5.00-inch backspace and 6mm offset, 18x9-inch with 5.25-inch backspace and 6mm offset, and 20x9-inch with 5.25-inch backspace and 6mm offset. Recommended aftermarket tire size is 33x11.50 inches; larger tires may fit but will require fender trimming and modifications.

Features

• 6-inch front lift: complete replacement pack raises the front of qualifying Super Duty and Excursion trucks 6 inches over stock ride height
• Thin, multi-leaf progressive design: graduated spring rate improves ride quality on-road and suspension control off-road
• Wide shock compatibility: works with a broad range of shock absorber options for a tailored suspension build
• OEM wheel and tire fitment confirmed: stock wheels and tires fit without modification
• ICON Limited Lifetime Warranty: covered under ICON Vehicle Dynamics' limited lifetime warranty

Specifications

Who This Is For and Isn't

This leaf spring suits owners of 2000–2004 Ford F-250/F-350 Super Duty 4WD Diesel trucks or 2000–2005 Ford Excursion 4WD Diesel vehicles who want 6 inches of front lift with improved on- and off-road ride quality and the flexibility to pair the spring pack with their preferred shock absorbers.

This spring does not fit 2WD models, gasoline-engine Super Duty or Excursion variants, or early 1999 model-year trucks. It is sold as a single spring; a second spring must be purchased separately. Installation also requires three additional kits sold separately: Front Box Kit (part 31020), Bump Stop Spacer Kit (part 33100), and U-Bolt Kit (part 37001).

Common Questions

Does this spring fit a gasoline-engine F-250 or F-350?

No. The ICON front leaf spring for this application is rated for diesel engines only. Gasoline-engine 2000–2004 Ford F-250/F-350 Super Duty and 2000–2005 Ford Excursion models are not a supported fitment for this spring pack.

How many springs does one listing include?

Each listing covers one leaf spring. Two springs are required to complete a front suspension installation on a qualifying Super Duty or Excursion, so two units must be added to the order.

What additional parts are required for installation?

In addition to the leaf springs themselves, installation requires three separately purchased kits: the Front Box Kit (part number 31020), the Bump Stop Spacer Kit (part number 33100), and the U-Bolt Kit (part number 37001). These are not included with the spring pack.

Will OEM wheels and tires still fit after installing this lift?

Yes. OEM wheels and tires are confirmed to fit after installing this 6-inch front lift leaf spring pack. Recommended aftermarket sizes include 33x11.50-inch tires; larger tires may require fender trimming and modifications.

Does this spring fit early 1999 Super Duty models?

No. This ICON leaf spring pack will not fit early 1999 Ford F-250/F-350 Super Duty models. The supported model year range begins with the 2000 model year for Super Duty trucks and 2000–2005 for the Ford Excursion.