2007 GT 500 crank pulley - Ford Mustang Forum
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post #1 of 2 (permalink) Old 03-15-2013 Thread Starter
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2007 GT 500 crank pulley

I have been told it is important to upgrade the lower crank pulley on my 07 shelby.....is this a must do for reliability?? If I do, should I not consider an aftermarket pulley with 10% overdrive?? Kill two birds with one stone??? Thanks, David:?:

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post #2 of 2 (permalink) Old 03-17-2013
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Location: San Diego
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The stock one is heavy. The 08+ is like half the weight. It will free up rotating mass meaning it will be easier for your motor to rev. If you do a OD pulley you will need a tune, so keep that in mind when pricing out parts.

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