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Many of us run larger tires on our trucks. 

The speedometer is calibrated to be accurate with the OEM tires.

Many tire manufactures list the exact dimensions, weight, and revolutions per mile.

It would be helpful/of interest if the correction math for distance, speed, and altered gear ratio were available.

This would be helpful in figuring exact miles per gallon.

Any of you mathematical folks interested in providing a step by step lesson?



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