2"-4" Leveling Kit Radius Arm Drop fit for F250 F350 4WD 2011-16 32429873Introduction: The radius arm brackets are a necessary ingredient to achieving the increase in lift while not only maintaining the factory geometry, but also the factory ride! The main advantages of using extended radius arms are better articulation, more ground clearance and a sharper adjustment radius. Once installed, they also allow fit for better adjustment of the front end of the Car. Application: fit for Ford F250 2011 2016 4WD Super Duty fit for