Product updated on 2020-01-21, BDS Suspension - BDS:123416, 2017+ Ford Super Duty Recoil traction bar mount kit, This kit box will now fit both the 3.5 and 4 inch axles, 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