[rheavn]

I have the same Michelin tire sizes on my coach as you have on yours--frt & rear. With 365s You can drop the pressure to either 120 or 125(I forget which) by Newell's recommendation. My coach has the large wheel studs that require $2,000 worth of machining for the 365 conversion. After looking at my coach weights(individual wheel weights taken at Newell) and looking at the 315 tire specs, I'm comfortable with the 315s.