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GMC Forum: speedo kit
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Old 08-11-2017, 07:45 PM
s10232 s10232 is offline
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Default speedo kit

im wondering if you need a speedo kit if your going for a 3.08 gear to a 3.73 gear on my 2009 yukon my tires measure 31 in top to bottom.
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Old 10-08-2017, 08:59 AM
SteveC SteveC is offline
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I am not sure what that is, HOWEVER you will need to adjust the speedometer and shift points thru either a hand held device, or a dyno tune.
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