Our 1990 Shadow Cruiser is a 9.5 and weighed 2038# dry before the addition of the AC roof air and all our "stuff". We haul it on our 04 Chevy Duramax 3500 DRW 4x4 with no mods of any kind and it sits up there level, handles peachy keen, and our mileage stays at or above 15 mpg. Empty it gets 15.2 so we're truly "happy campers" here. Oh, that's mountains in Colorado and on the flat in between. Had a Pop up same type of mileage but hated the hassle of up, down, sweating on inside, drafty, etc. Been there, done that, never again. Too old.