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Stock to 3.73 gear Speedo Difference? Stock to 3.73 gear Speedo Difference?
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(1999-2004) New Edge Mustang V6 & V8 GT Tech

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  #1  
Old 10-14-2011, 06:50 PM
mblack's Avatar
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Default Stock to 3.73 gear Speedo Difference?
does any one know the speedo differance when i swap my stock gears for 3.73's



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Old 10-14-2011, 07:57 PM
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from what stock gears?


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Old 10-14-2011, 08:15 PM
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Yeah his stock gears. Mentioned above. I have 3:73s on my car but its 2 different cars. I think you will love it though.


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Old 10-14-2011, 08:17 PM
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probably not much it's only about a half turn i think


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Old 10-14-2011, 08:46 PM
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It depends. I noticed between 5-10 mph difference depending on speed. There is a calculator out there somewhere to do the conversion for you. You just put in your stock gear and whatever gear you put in and it'll tell you the speed at the certain rpm


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Old 10-14-2011, 08:59 PM
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http://www.wallaceracing.com/gear-speed.php

http://www.apexgarage.com/tech/gear_ratios.shtml


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Old 10-14-2011, 10:16 PM
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I have a 2008 GT and changed to 3.73 and dropped 6 MPH I used my GPS reading until I got my tune and that corrected
the speed


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