I have a 1991 IH Thomas shorty. On the plate it says the stock tires were 9r 22.5. When I bought it, it has 10r 22.5's on it. The question I have is would it be bad to go to 297/75 22.5? From what I've read, the OD is the same, at 40.2" I've heard the terms low profile and high profile when referring to the tires, but I'm not sure if it would change handling, or anything like that. I know that going to a taller tire would give a higher than accurate groundspeed indication, while lowering rpm's slightly. Any downside?