Looked at all the companies mentioned. Finally went with Moritz Aluminum truck body 8' x 8'.6" for my 03' dually. The company is out of PA. The dealer I bought it from is located in Butler, NJ -- York Motors Inc. 973-492-0110, Greg Straffin was the salesman. $3100.00 out the door price. Local welding shop installed it for $700.00. I like it so far (only had it on the truck for three months). The old truck bed was in pretty bad shape. I use this truck to salt our commercial sites and the salt from the two yard spreader did a lot of damage! Now I can do a lot better of a job washing off the salt due to the flat bed!!! Good luck.
Frank