3.55's Instead Of 3.73's?

Discussion in '2010 - 2014 Specific Tech' started by RWDtech, Jul 11, 2013.


  1. RWDtech

    RWDtech Member

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    I have a 2013 GT, Manual, with 3.31's. All the mustang's I test drove before the one I currently own had 3.73's and felt a lot more powerful than this one. I have been looking to get 3.73's installed, but hear a lot of people complaining about how 1st gear is too short and bad fuel economy. Currently 3.55's are on sale this month from http://www.americanmuscle.com/yukon-355-1113gt.html for $130. Does anyone here have 3.55's? What do you guys think?
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  2. GDMCSMITH

    GDMCSMITH Founding Member

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    I had a 2012 GT with 3.73 gears and it was stout...My new 2014 has 3.55 and I do like them better...A bit better gas mileage and I like the way the transmission feels...I get through the gears easier and don't seem to red line as much...I suggest that you go to a dealer and test drive the 3.55 and 3.73 and see which feels better...
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  3. beviking

    beviking Member

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    Sorry this isn't a direct answer...I have 3.73's. Unless I'm at a complete stop on an incline, I take off in 2nd gear with minimal feathering of the clutch so I won't ever complain about 1st gear. Mileage? I was getting consistent 23/24 mpg when I had the Steeda CAI and tune, more like 21/22 now with supercharger. I do a bit of highway on my commute (DD in the summer) so ymmv.
    That said, I was looking to get 3.55's but am happy with the 3.73's. If you can do it without much hardship (financially, knuckle bustingly or spouse harassingly) then do it. :)
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