Ok, so I found out my odometer is off by about 3/10ths on this last trip I took. How do I correct that? My speedo and tach have been "off" since I traded for the car, but I thought it was due to the incomplete swap (car still have NON PATS v-6 interior wiring harness, same as in '94-'95 mustangs) (but has a '01 GT motor and underhood wiring harness) Have all parts to do swap, but its allot of work (time consuming) Is their anyway to adjust the settings? Original wheels were 15", these are 18"s, and no I dont have the 15's to swap back. Thanks for the help.