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Discussion Starter #1
Just wondering if the mac white face guage convert 85mph speedo to 140 or do I have to buy a new dash?? Thanks Corral
 

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The faces don't convert anything. You need the actual speedo mechanism behind the face.

DOn't need a new gauge pod...just the speedo out of one. The speedo units direct swap into the plastic frames inside the pods so all you would need to do is put a 140MH face on
 

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Discussion Starter #3
Thanks alot!
 

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140 speedo

yup, u need one from an 89 -up mustang BUT your mileage on
your car wont be correct anymore! i swapped to a 140 but the mileage reading on the 140 speedo was a near match for my real mileage. just be carefull!
 

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If you hook a high speed dril up to the speedo cable you can change the milage pretty easy. How do you think car dealers used to do it back in the 70's and 80's :D

I matched my mileage perfectly with this method
 

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if the car is over 10 years old they (DMV) dont even care anymore. Most people buying a 5.0 want to "fix it up" or they'd buy something else. As long as it hasnt been wrecked i woudlnt care about the mileage when all the rubber and bushings need to be replaced.
 
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