I have a 90sc 5-speed , just changed to an auto 3.27 pumpkin and was wanting to convert my original speedo to 145mph. Do I change the speedo gear in the trans ? I have the article for the conversion but with the gear change I am unsure.
so the speedo gear has nothing to do with the speedo itself, lets say I put in a gear from a 94-95 that would not calibrate my 120 speedo to 145?