I went to DMV to reg my old box as a trailer. They asked where I got the box from. I told them my truck. They asked what was on the truck. I told them I converted into a flatbed. They told me I had to fillout some forms because I changed my rig into flatbed get inspected and weighed can you beleive that ST!T. Now they won't reg either one till I get that done. Has anyone else had this happen then when converting to a flatbed?