Just had my 2014 JKUR with 37's and 6spd, re-gearded to 5.13's, couldn't be happier. I have seen a slight drop in MPG from 14.2 to 13.6 around town. I think if were to milk it I could probably do better on the mpg's but I'm a bit heavy on the gas. I can run at 80 mph on the hwy at about 3000 rpm's with no problem, cruising at 65 mph I get about 17.5-18 mpg. Sooo glad to have my sixth gear back. If I did it again I wouldn't change a thing.
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