I'm running a 2002 3/4 ton Dodge/Cummins diesel with a fairly loaded down Capri Rodeo Deluxe camper. It's a short bed camper in a truck with a long bed. I use the gap between the cab and camper for storage, fuel cans, water cans, etc.
I carry around 40 gallons of water, 35 gallons of fuel with a...