you mean like a helper wheel, like big rigs that carry a lot of weight have an extra axle that they lower. that seem feasable....but a bigger wheel seems easier. i will look into this torflex suspension. i thi8nk if i could get a 13-15 inch rim i can run a car tire, the hobie is light, a car tire would create enough flotaion i would think, if not i could run a 8 inch rim and that would definatly take care of it.

i have no fenders but would just fab something, like sheet metal or what not. also i am not worried about how tall this ends up making the trailer, as the truck already needs a big drop hitch. it looks funny if no trailer is on it.

thanks again for the ideas, i also thought about using a plastic type wheel i could just bolt on, like a small drum of some sorts, i have seen them that they ship soap in, i could rig a bolt circle for the trailer and throw that on.....i also thought about a four wheeler tire that was a sand tire, and putting that a a rim that would bolt up, i just didnt want o have to carry an extra set of tires and rims.