Rich,
Deb and I have a 09 Bighorn 3055RL and pull it with a 2004 F250 CC SB 4WD 6.0. When we left the dealership, I weighed the rig at a CATS scale in traveling configuration. . The truck with Deb and I, our dachsund, hitch and generator in the box and full fuel weighs 8400 pounds with 3400 on the rear axle. The entire rig weighs 20300 pounds with 5700 pounds on the trucks rear axle. Pin weight is 2300 pounds. I have weighed it both on departure and on return from trips. The scales show I am under GAWR on all axles but 300 pounds over on GCVWR. I then went on a research mission to determine the actual difference between between the F350 and F250. I discovered there is very little difference between them. The engine, trans, drive shafts, frame, brakes and wheels are common between them. The main rear spring packs and entire front suspension are the same. The F350 has an additional "over load spring" and a rear stabilizer bar. The tires on the F350 are rated for more load. The F250 has an optional "camper package" available and my truck has that option. With that option you get the overload springs and the stabilizer bar. I have 3400 pound rating tires on the truck. Axle ratios are part of the weight equation but because they can be easily field modified they are not relevant in this discussion. This makes my truck functionally identical to a F350 except for the door sticker and the F350 badges. This is why you see so many F250's pulling trailers like mine and why they are happy with them. I am very pleased with the way my truck handles my 5ver. Before the weight critics jump on this post, please be aware that I know my truck is a F250 and can not be documented as a F350. That fact does not change the other facts that explain why most of the F250 guys do not worry about pulling their trailer. Rich, this information applies to F250's built prior to the 2005 model year so your truck is different but I would guess the Ford weight rating game is still similar. I suspect the DMV departments wheel taxing policies have a lot to do with this screwy system. Also, when you upgrade to a F350 Dually your load capacity goes up considerably. YMMV and the opinions in this post are worth exactly what was paid for them
Ricatic