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Tire ??


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   Don't know where to ask this.    This has nothing to do with fishing (sorry) but I am wondering if anyone knows this.?   Can I replace all 4 of my P265/65R-18" tires with 4 new P255/65-18" on a 2016 GMC  Yukon without screwing up the vehicle computer or anything else??   Thanks for any info.!

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You will lose about 0.45 inches in tire diameter,  and you will be going about 54 mph when your speedometer shows 55 mph.  I don't think you will screw up your computer otherwise. 

Here is a tire size change calculator:  http://m.roadkillcustoms.com/tire-change-speedometer-change-calculator/

Edited by LakerTaker
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