black_81_vette
Well-known member
A while back a few people asked about how they could correct the speedometer on their 80 to 82 Vette when going from a 2.72 gear to a 3.54 ratio.I was told that the % of error was 30% providing you were still running the stock tire size. In my case my tire size is 255 60 15. I have found a adaptor that will put you within a 2-3 % window of being correct the web site here has what you will need.http://www.transmissioncenter.net/speedometer_calibration_______va.htm hope this helps.
