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SPEEDCAL
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SpeedCal DMP's SpeedCal Corrects Speedometer readings on 1996 and up Mustangs when the rear end gear or tire size has been changed. A great fix with quick, simple installation on all 1994 and up 5 speed equipped Mustangs and 1994-98 automatic equipped Mustangs. When ordering, if you give us your tire size, stock and current rear end gear, stock and current speedo gear tooth count (if it has been changed from stock), we will pre-set the SpeedCal for you. You can also use our 'SpeedCal Calculator' and do your own calculations.
Installation Instructions
We have moved our SpeedCal Calculator to an easier to use popup window.
Click Here to use the Dallas Mustang SpeedCal Calculator

Click Here to find the right Speed-Cal for you.





Terlingua Racing Team


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