Factor gear ratio

Discussion in '2004 - 2008 Ford F150 Truck Forum' started by kossuth2016, Sep 21, 2018.

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  1. kossuth2016

    Anyone know the closest gear ratio to 3.97 I think it's 4.11 but not sure. Want to run bigger tires so need a gear swap to keep everything happy. Thanks for any help
     
    kossuth2016, Sep 21, 2018
    #1
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  2. FTZ HAIC Staff Member Oregon Chapter Founding Member

    The ratios in that range are 3.73, 3.91, 4.11
     
    FTZ HAIC, Sep 23, 2018
    #2

  3. kossuth2016

    Ok thanks I'll probably go with the 4.11 gear think it will be fine. I am going from 255/70/17 to 285/70/17. Hope to not lose much power.
     
    kossuth2016, Sep 25, 2018
    #3

  4. FTZ HAIC Staff Member Oregon Chapter Founding Member

    How it feels with power you may not notice but you'll notice it at the gas pump! :(
     
    FTZ HAIC, Sep 27, 2018
    #4
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