Ford F-350 2011 - 2026 HD Kit Factory Overload Spring:Truck Does Have Factory Overload Spring RAS uses a variable-rate tension

RAS uses a variable-rate tension coil spring that attaches directly to your rear leaf springs

no airlines

Screen printed graphics

*This part is on a 2-3 week back order

and everyday driving performance

Ford F-350 2011 - 2026 HD Kit Factory Overload Spring:Truck Does Have Factory Overload Spring RAS uses a variable-rate tensionRoadActive Suspension kit includes an easy to install RAS Heavy Duty Helper Springs for each rear leaf spring. This RAS kit is designed to stabilize, to reduce bounce and improve stability for towing or hauling while providing same as or better than stock unloaded ride and performance. *If your truck does not have factory top overload springs, expect 30 40% increase suspension strength. *If your truck does have a factory top overload: it must be