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Thread: 2018 Mustang Gear Ratio Change

  1. #1
    Advanced Tuner
    Join Date
    Oct 2009
    Posts
    252

    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
    Join Date
    Sep 2010
    Posts
    784
    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)