Bryan63

I have a 95 with a 302 ford carberated with a t5 trans and a ford 7.5 limited slip out of a IRS mecury cougar and plan on running 16x8 wheels 245-35ZR16 tires I am about 25% in build so far and have all my parts for install and wondering what has to be done for correcting/calibrating speedo when the time comes?????

rick

Welcome to v8miata.net Bryan63.

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tbone heller

It is as simple as installing the correct speedometer drive gear. After driving the car, you can determine what gear is needed.

tbone heller

This may help: http://www.latemodelrestoration.com/...lication-Guide

MRM331

Look up the specs (diameter, revs per mile) on the tires you are using on tire rack and compair them to the 225/45-15 RS3 most of us are using. If it's pretty close the "red" 23-tooth (IIRC) speedometer drive gear will work for you. LMR (the link above) has the best price. It's under $15.

-Jason