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  1. 2005-2010 Mustang GT Tech
    ...Need some assistance from the AllFordMustangs.com Brain Trust: Will I need to recalibrate my speedometer if I switch from the stock 17" 2008 GT wheels running P235/55ZR17's all the way around to staggered aftermarket 18" wheels running 285/40ZR18's in the rear & 255/45ZR18's in the front...
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