While doing some research yesterday on brakes and drums to install on our coach we purchased last year at a dealer I discovered that the dealer installed tires that are too light of a weight rating on our coach prior to us purchasing it and the wrong size. The coach calls for a 295/80R22.5 in all positions with a H rating on the steer axle, (14600lbs steer axle, 23000 drive axle) The dealer installed 295/75R22.5 with a G rating (Firestone FS591 rated at 6175lbs each), when you do the math I am