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Thread: 2018 Mustang Gear Ratio Change

  1. #1
    Advanced Tuner
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    2018 Mustang Gear Ratio Change

    In a 2018 Mustang, in order to change the gear ratio, do you have to change the drop down to "Calibration" and then set the ratio to whatever it needs to be? I seem to remember having to do it that way on the '05-'09 cars.

    Thanks.

  2. #2
    Advanced Tuner
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    s550 cars you change it from the special functions the scanner when you are connected to the vehicle but not logging, it will prompt you for rev/mile of tires(shows current value so you can just retype the current one if it hasn't changed) and then gear ratio(shows current value so you can see what is programmed stock)

  3. #3
    Advanced Tuner
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    The only Special Functions that I have in the Scanner are Crank Relearn and KAM Reset. No gear ratio change.

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  5. #5
    Tuner in Training
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    It make no sense to buy another device, HPTuner should do it!

  6. #6
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    put a ticket it in, they should be able to add it...

  7. #7
    Advanced Tuner veeefour's Avatar
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    Quote Originally Posted by skythunder83 View Post
    It make no sense to buy another device, HPTuner should do it!
    But ForScan is free?

  8. #8
    Tuner in Training
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    +1 for forscan FREE

  9. #9
    Tuner in Training
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    yes you change it to calibration. if its an auto car, youll probably need to change the NV ratio as well so itll shift right