I have a topper on my truck and use 2x4's with padding attached. The two by's lay across top of bed where the topper attaches and are held in place with "c" clamps. Put the fuse on those and bugee them down. Bed has a rubber liner, lay the wings in the bottom. I can haul three 40 t0 60 size planes in comfort in my Isuzu.Cab gets alittle crowded with the tool box and radio case......No room for passengers on my way to the field ! Although I haven't tried to carry larger planes, I am plannig on carrying my quarter scale Cub to the field this weekend for her maiden...............I may have to re-configure!