We have a 9.5' camper, 4 horse bumper pull. Have
had this set up for 12 years, and before that an 8' with 2 horse bumperpull. I
personally would always want a dually for a camper and trailer. Much more
stable. Also consider having airbags added to truck. But some truck
salesmen will tell you that a non dually would be fine.... And some haul
that way. I just prefer the extra stability. High winds can really push you
around, and this is where I really see the difference.