So what would be the best way to get the rear end of my class c higher off the ground? I like to travel off road and done want the back end dragging when going over rougher roads. Thank you
caution, tires need to be able to flex WITHOUT rubbing each other. 19.5's would probably require special wheels to allow and then would cause potential issues with the fender walls. Same thing could be true with larger 16's, I dont know if the new duallys have 17 or 18 inch wheels but maybe you can check and see fitment?
Check with someplace like ARROW wheels they would be a good source for information.