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Junior Member
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Discussion Starter #1
2004 T2000 KW

Am I correct to assume that kenworth has to be the one to recalibrate the speedometer. Looking to go from lowpro 22.5's to 11r22.5's.
 

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Junior Member
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88 Posts
It is done through engine ecm. Has nothing to do with truck mfg. Cummins uses Insite, Cat uses ET for example. Any shop/person that has this software can do it for you.
 
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