ICON Vehicle Dynamics 17-UP FSD 5" REAR LEAF SPRING PACK 168506

These 5 Inch Rear Springs are progressively rated to improve the ride quality of your Ford Super Duty F250 / F350 truck, as well as increased performance. The multi leaf construction ensures a smooth ride with less chance of spring fatigue under load, minimizing sagging. The bottom 2 leaves of the pack are flat to provide a secondary rate preventing harsh bottom outs and smooth transition through the suspension cycle.