Hi everyone, I am new to this forum and looking at Class B motorhomes. I kinda' like the Xplorer. It seems to offer as much as the others and appears to be rugged. Dose anyone know about their dual rear wheels? Is this a Dodge option or some retrofit or something. More importantly, do the front and rear wheels interchange? Any other thoughts on which class B to get I would appreciate. I have to buy a used one, maybe 1996-1999 or so. Thanks for your help.