A 1500 Series (1/2 ton) PU truck, for towing a 5th wheel.

Put it this way, I have a 1/2 ton truck and a 23 foot trailer that weighs about 5k fully loaded. Much lighter than any fiver. No problem for the truck right? In actuality after I load in my family and gear I exceed my payload rating. It's really surprising how little payload a full size truck has. I wouldn't even consider a fiver with a half ton.