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Old 04-10-2011, 07:17 AM   #25 (permalink)
winkosmosis
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Join Date: Jan 2009
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Be warned-- I've never heard of someone going to bigger tires on a truck without losing gas mileage. It's not because of the rotating weight of bigger tires, but the taller final gear ratio. Dropping highway RPM sounds good in theory but never really work unless the truck was undergeared to begin with.
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