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Wheels & Tires Semi-Tech General discussion of wheels and tires for the Ford Ranger.
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Old 05-02-2006
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bigger tires/speedo accuracy

I just bought a Ranger last week. The tires that are on there are 265/75-16. According to the door label it comes stock with 245/75-16.

How much does that screw up the speedo and odometer? Is there a way to calibrate the computer so it is correct?

Thanks
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Old 05-02-2006
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itll be off by maybe 1-2mph at 60 so you really shouldnt notice it... to get it fixed you can go to ford or get a performace tuner that will recalibrate your speedo as well as give you extra power and performance....
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Old 05-02-2006
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I went from 28-29" tires stock to 31" tires and I only changed 1-2 mph at 60mph.
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Old 05-03-2006
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what about going from 25 inch to 28-31 inch
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Old 05-03-2006
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probly 2-4
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Old 05-03-2006
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at a certain speed or over all
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Old 05-03-2006
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Quote:
Originally Posted by telemaster1952
at a certain speed or over all
well acully its a percentage so at lower speeds it wont be off as much and at like 70 it will be off more. also you know there is a gear on your trans that the speedo cable goes into you take off the i think 10mm bolt and the cable comes off and you can put a different gear # to correct it
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