Follow-Up:
I pull a motorcycle trailer with two full size motorcycles + a nice storage cabinet,just returned from 4500 mi trip,including the pass,thru silverado and down into Durango Colorado, I run 80 mi per,no problems,,I met a rialta going from durango ,over the pass heading north while i was heading south,women driving reported no problems either ,,,Just one of the many advantages to owning a RIALTA I can't think of any other motor home that I would try driving over that road pulling a trailer...Harlow (2002QD)