I have'nt bought a bed yet but I think I will go with Mack Hils. Thats who Mar-k directed me to since they dont carry the beds for the 40 and earlier trucks. I've also seen the beds on ebay but they do not come with tailgate, side angles or middle crossmembers. I'm afraid of incompatability if I buy these parts from another supplier, and I think by the time you buy the additional parts it would be about the same $ anyway.