[da-burb]

I had one in a 71 C20. 1971 Coachman 11-1/2' long and it has to weigh more than 2,000#'s. It didn't make a bit of difference in MPG's. With a big block you get 10 miles per gallon empty or full. I could see it making a couple fewer MPG's in a small block.

I personally wouldn't put a heavy camper in a half ton. Maybe if you find a modern camper that isn't as heavy as a 70's model. The 3/4 tons handle the load better. The biggest issue while driving is side winds. You have a big sail and it pushes you around big time. I don't have that problem with the C-30 motorhome I currently have. The other reason against a half ton is stopping power. Your brakes are bigger and better on the C20-'s. When you have a big rig, you get tons of people pulling out in front of you so you had better be able to stop.