Speedometer off...

Bad Sport said

Well, what I mean is verify everything, tire size again (actually measure it), gearing (is this car new to you or did you do a gear swap), double check that the housing is clocked correctly in the trans as mentioned above.

I know when I bought the appropriate gear for my car (which you seem to have done) mine was spot on.

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OK, I will go back and check everything. is there anyway to verify the gears without tearing off the diff cover? The rear end was swapped before I bought it. That is why I was hoping someone could help me with the math on the teeth. If we were able to work the math out we would see that maybe it is a 3:51 which in that case I need a 36 tooth gear. Or if someone knows a rule of thumb maybe it is each tooth is 2 mph down/up then I would know I need to do up 5 teeth. But I can dive back in and make sure i did it all correctly. Thanks!