140 MPH speedometer from a 110 MPH 87-89
I plan to change the face on my speedometer. Actually i have a 110 MPH on my GT and MAC offer a 140 MPH.
If i remove the old one and i install the new faces. Is there's something i can do to correct the reading of my speedometer.
As changing the gear at the end of the speedometer cable. If so. What i need exactly.
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