The Carli XXHD leaf spring kit for 2017–2023 Ford F-250 and F-350 4x4 diesel models is intended for trucks carrying a constant 3,500-pound load in the bed. These heavy-rate, full progressive packs are not designed to run unloaded; they eliminate blocks, provide a one-inch rear lift, include new U-bolts and rear bump stop drops, and allow fitment of 37" tires for serious, permanently laden builds.
Carli Xxhd Leaf Spring Kit - 2017-23 Ford F250/F350 - +3500 Lbs - 1in Lift