kriscribner

hey guys i just had a quck question, probably stupid, but i just thought of it. i bought my stang from a dealer, and when i installed 3.90s the other day the kid who did thtem for me took out the old gears, which happend to be 3.73s. i had a tune in the car before, and the axle ratio set at stock... would this mean the car has a false odometer reading cuz it didnt no the axle ratio was 3.73??

blackstallion666

correct. your gonna needa tune to recalibrate for the different gears. and the speedo may also be off by a little bit

kriscribner

yea the speedo was definitly off before, but i recalibrated and now it works ( it was off nearly 10 mph i feell like im driving so fast now haha) how much of a difference do u think it made 9car has 79k, but ihave no idea when te gears were instaled.. they look pretty new... but it was a one owner car before me.. i should have less miles right?

blackstallion666

yea i'm pretty sure there's actually less miles on your car then the odometer reads. how much you'll never know.

McNasty11jm

I know this sounds dumb but i cant find anyone around where i live that will recalibrate my speedometer, and i was wondering where yall went to get yalls done?

WhiteFoxGT

I assume you have a Fox because of your AV, so check this out. Match up what trans/gears u have and this should tell you everything you need to know

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