Product updated on 2020-01-21, 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, Fully assembled the RECOIL traction bars are 60" long and mount to the vehicle using fabricated 1/4" steel brackets. Bracket kits are vehicle specific. The frame brackets install by drilling mounting holes for the brackets while the axle brackets install