ICON 2008-2026 Ford F-250/F-350 Super Duty 6" Offset Rear Block Kit

The ICON Vehicle Dynamics 6" Offset Rear Block Kit adds 6 inches of rear lift to 2008–2026 Ford F-250 and F-350 Super Duty trucks using an offset, square, non-tapered block design that recenters the tire within the wheel well, a fitment advantage over standard square blocks that leave the tire sitting off-center at taller lift heights. Note that this kit will not fit 2023–2025 F-350 models equipped with dual rear wheels.

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.

Offset Design, Proper Tire Placement

Standard tall square blocks push the axle rearward without accounting for wheel-well geometry, leaving the tire visually and functionally off-center. The ICON offset block corrects that geometry so the tire sits where it belongs in the wheel well. Correct placement matters on a work truck where both appearance and clearance are functional concerns. The non-tapered profile keeps the axle square under the truck rather than introducing pinion-angle changes that can stress driveline components.

Heavy-Duty Construction for Towing and Off-Road Use

Each block is fabricated from CNC laser-cut and brake-formed steel plate combined with .250" wall square tubing. That wall thickness is specified for trucks that spend time under load (towing, hauling, or running rough terrain), where thinner material would flex or crack over time. A reinforced bump stop tang limits compression travel at full bottom-out, protecting the rear shocks and shock mounts from contact damage during hard off-road hits.

Finish and Application Notes

A semi-gloss black powder coat finish provides corrosion resistance for trucks exposed to road salt, mud, and weather. Three application notes apply to this kit: Advanced Driver Assistance Systems (ADAS) must be recalibrated after installation (Application Note #155); the kit will not fit 2023–2025 F-350 trucks with dual rear wheels (Application Note #213); and U-bolts are not included, so the installer must select the appropriate U-bolts for the specific model year and leaf spring configuration (Application Note #491).

Features

• 6" offset block height: vehicle-specific, square, non-tapered design
• Offset geometry: recenters the tire within the wheel well at lift height
• CNC laser-cut steel construction: brake-formed steel plate and .250" wall square tubing
• Reinforced bump stop tang: limits compression travel to protect shocks and mounts
• Semi-gloss black powder coat: corrosion-resistant finish
• ICON Limited Lifetime Warranty

Specifications

Who This Is For and Isn't

This kit suits owners of 2008–2026 Ford F-250 or F-350 Super Duty trucks (single rear wheel configurations) who want 6 inches of rear lift with correct tire placement in the wheel well, and who use their truck for towing, hauling, or off-road driving where block durability under load matters.

This kit does not fit 2023–2025 Ford F-350 trucks equipped with dual rear wheels. U-bolts are not included and must be sourced separately based on the specific model year and leaf spring configuration. ADAS-equipped trucks require professional recalibration of those systems after installation.

Common Questions

Which Ford Super Duty years and models does this block kit fit?

The ICON 6" Offset Rear Block Kit fits 2008 through 2026 Ford F-250 and F-350 Super Duty trucks in single rear wheel configurations. It will not fit 2023–2025 F-350 models equipped with dual rear wheels.

Are U-bolts included with this kit?

U-bolts are not included. The correct U-bolt specification depends on the truck's model year and leaf spring configuration, so the installer must source the appropriate U-bolts separately before completing the installation.

Does installing this block kit affect the truck's driver assistance systems?

Yes. Advanced Driver Assistance Systems (ADAS) require recalibration after this block kit is installed. This step should be completed by a qualified technician before returning the truck to normal use.

Why use an offset block instead of a standard square block for a 6" lift?

At taller lift heights, standard square blocks can leave the tire sitting off-center in the wheel well. The ICON offset block design recenters the tire within the wheel well, correcting that placement issue without introducing pinion-angle changes from a tapered block.