I'm getting ready to start RVing full time. I'm buying a Keystone Bullet, 30"@ 5,600 dry. What size of truck would comfortable tow it. I'm looking at Dodge 1500 or 2500 with the 5.7 Him.
Go to this website Trailer Life Towing Guides and check the specs for different options. It will give you a much better picture of your towing capacity. Of course, you still need to figure out how much additional weight you'll be putting in the trailer and the truck.