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Old 09-07-2011, 09:48 PM
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American Muscle American Muscle is offline
305 Turbo-Fire 240hp
 
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how tall are your tires. It might be cheaper to just swap out the entire rear end. In some cases it may help your gas mileage becaus the motor is working very hard to pull that heavy truck with such a high gear. 3 08's may be a big upgrade from the 2 73's. 3;42 or 3'55 would be really great and still have decent mileage, but when you decide to go 3;73 or higher you can hang up fuel economy.
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