If i get 37's will my gas mileage

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Old 07-20-2008, 11:45 PM
rjlonghorns_15's Avatar
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If i get 37's will my gas mileage

If i get 37's will my gas mileage by greater or lower then the 35's with 4.88 rear gear ratio that i have now???
Was told that 4.88 would be perfect for 37's because it would bring the RPM's back up to stock
 

Last edited by rjlonghorns_15; 07-20-2008 at 11:51 PM.
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Old 07-21-2008, 12:07 AM
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Way too many factors to know for sure... Do a lot of city driving? How about highway? Do any regular towing? Is it hilly where you drive? Have an aggressive/lead foot? What's your MPG now? Before tires and gears?
 
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Old 07-21-2008, 12:39 AM
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More highway driving then anything, i don't tow often, no hills, not aggressive anymore, mpg before-19, mpg now-11

Truck runs at high RPM's
 



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