The 57298 will only work on your F-350 if you have Reese fifth wheel hitch. If you just have an in-bead hitch, we recommend kit 57390. This kit is just for the 4 wheel drive. If you have a 2 wheel drive and an in-bed hitch, not Reese, you will need kit number 57393. If you do not have a in-bead hitch kit 57215 which fits both 2 & 4 wheel drive. The above kits will fit a dual rear wheel F-350. Feel free to call me with any questions. Thank you. Dave