Dad's 1971 F250 'Custom' Camper Speical has a whopping #6900 GVWR... :)
Still has it to this day, but it's retired now. Back in the day, we hitched up a 26' TT and had a slide in 8' camper shell in the bed.. 4 people in the truck/camper, dog and sometimes a 1969 Yamaha 125 in the camper with my sister and I!
390/C6 combo, split rim wheels, bias ply tires with actual inner tubes. No A/C, no power steering, rubber mats on the floor, gas tank right behind the seat.
He now has a 2005 Dodge Ram 3500 Dually Lariat, so he's upgraded too!
Mitch