Ford Mustang Forum - View Single Post - 3.31 Axle on The 2011 Mustang V-6
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post #9 of (permalink) Old 06-16-2010
Propaganda13
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Joined: Apr 2010
Location: Milwaukee
Posts: 224
 
3.31 are worth it as a $400 unless you plan to go to a larger number later.

More grunt, but slightly less mpg. See if you can test drive both to compare.
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