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DJMikePaul
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Discussion Starter #1
Ok ive got the superchips and have had it for some time... but today i was re-calibrating the speedo for my tires... i have P255/70R15 ... online converter (i checked several different ones), says that, that tire is 29.1" in diameter... I went and measured it and it is 27.6". Which measurement should i use?
 

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When I recalibrate my speedo I measure from the center of the wheel to the ground x 2 and use that number.
 

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DJMikePaul
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Discussion Starter #3
ya.. thanks man... i did what u said and got the 27.6" again.. so im staying with that.
 
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