MY COACH had toyo 11r 22.5's went to my tire guy to day and he talked me into getting dunlaps...he said they ride better, and have a 7 yr gauranty...
plus , they are made in usa...
I always thought all rv and truck tire were 5 years
he also said they will warranty the dunlaps on the spot where as the toyo's have to be sent in to be inspected first...