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overdrive
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  1. 2007 - 2014 Shelby GT500 Mustang
    I have a friend with a 2010 gt500 that wants to put a 10% overdrive pulley on, he wants my help, I have only done a 05 4.6l underdrive pulley and that was pretty easy. is the process the same? Im guessing it is I just want to make sure, My pulley puller worked fine on my 4.6l, i want to make...
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