Havnt gotten any quotes yet. I'm looking at putting it on a 200" wb f-550. I like the Rugby uni-body ones, the one without all the stakes, mainly to use for hauling mulch, dirt, sand and crushed stone. I've heard guys spending 6k, 8k, 10k... I saw at a local ford dealer they had some body similar for 11k! yikes. Im only assuming, since you can buy 14' trailers in the 12-14k gvw range for 7-8k easily, take all of that minus the wheels/tires/axles and thats basically what you buy for a dump body on a truck right? The 06-08 F550s say they have a 7k front axle, and 13k rear axle, or 13,500. Either way, you have a capacity of about 20k in weight. Why are the F550s rated at 17,900? And if the back axle can support 13k, how do guys haul 15 yards of mulch heaping up over a 12' landscape body, assuming the body is 2k in weight and the back of the truck is almost 2k in a crew cab. Assuming just 900lbs per yard, your at 13,500lbs for the mulch only, plus any cargo, fuel, crew, trailers tongue weight, the body is 2k and the truck without the body probably has 2k on the rear axle alone, thats over 5000lbs over what the back axle is rated at? I see companies do this all the time though. The one local company had their crews load 04-06 Ford F550s heaping over with no room left, and drive them around to spread mulch, the back was squatting like my 91 F150 with 2400lbs in it lol.