Product updated on 2020-11-09, BDS Suspension - BDS:123426, 2017+ Ford F350 Super Duty Recoil traction bar mount kit for 4.5 inch axle tubes, This kit will fit F350's including Dually truck with the 4.5 rear axle, RECOIL Traction Bars BDS Suspension introduces a revolutionary spring loaded traction bar system engineered to improve traction and limit axle wrap without negatively affecting suspension travel or ride quality. These next generation RECOIL traction bars ,