hey i now have a 140 mph speedodometer but its all inacurate i was wondering if mayb it orignally had a 85 mph, but is there some way of changing it or something like do u have to do something special before u change from 85 to 140 mph odometer.

 

Can't you just take it to a shop and have them calibrate it?

 

For your year you just need a different speedo gear..Steeda sells them..</P>


www.steeda.com (click mustang, then drivetrain)</P>

 

thanks alot.