Pinion?
It looks like the cheapest way to get the mph correct is to buy a 300zx speed sensor from autozone ($75) and a pinion from courtesy ($15-$25). I don't know which pinion to get, however. They range from 17t to 21t (t is for the amount of teeth on the pinion). Which one do I need for the rb25 tranny?
As for the tach, Carl H. is supposed to help me for $45 plus shipping.
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