The Stovebolt Site Forums The Shop Area Driveline 1953 3600 - wrong speedometer gear?

Not going the A/C route in that old truck. Everything is original mechanically and I intend it to stay that way.
I was wondering if the odometer does end up reading wrong because of the wrong gears then does that means the actual mileage would be wrong too? I have had it for 37 years and it started with 16K miles and now has 32K. I guess I could calculate the actual mileage once I figure out what the error is.