Hi guys, I need to know how to figure out which speedo gear to install. I have a 26.5" tall tire with factory 3.08 gears and a TH350 tranny. The gear I have in is white but not sure how many teeth are on it. Today I had it on the Interstate with the speedo reading 85-90 and everyone was still passing me so I know it is off a ways just don't know which color gear/teeth# to get. Thanks for the help thus far.