Looking at 2016 F250 XLT crew cab short bed trucks,gas model shows 2755 payload on door and diesel shows 2122 lbs with a option on it called camper pkg- upgraded front & rear springs and stabilizer ba...
As posted by others, the F250 has a low GVWR because it is a Class 2b vehicle. The RAWR is artificially low because of the 17" rims and tires. Get the camper package with 18" wheels and you have the F350 without the papers. My F250 was comfortable at 11,500 lbs running 7000 lbs on the rear axle with this configuration.