No problem - glad to help.
I'm sure the 225/70's would fit without rubbing. But with your stated goals of trying to keep the car more original looking and attempting to keep the speedometer accurate - the 215/75's are what I'd go with.
My grandson is looking to enlist in the Air Force and would be taking basic in San Antonio. If we come down for graduation - I'll expect a ride in your Goat! But only if you put redlines on...
