unleashedford, im not sure abt mpg's but i know if you were to re-gear you would have alot of restored power. the minimum reccommendation, as far as ive ever heard is at least 3.73's with 35's, 4.10 or 4.56 would be better. you will be able to get going alot easier and put your rpms back around the powerband range. im curious to what your rpms are at say 70mph with the 35ers
interesting how this plays into the mpg equation though, your tires are lowering your rpms thus saving gas...
for economy you might wanna stay where you are but im pretty sure your asking alot out of a smaller ring/pinion.
you might wanna research restored power vs economy if you were to re-gear.
