4.10 or 4.56
04-02-2013, 06:03 PM
#21
JK Freak
I have a '12 JKU Auto, I went with 4.56's and I'm running 315/70-17's (34"). I love this set up. I live in Flatland Florida and I see an average mpg of 17. I really like the pep and overall performance of the 4.56's. I'm sure you'll get a hundred different answers to this question and this is just my personal experience and opinion. Good luck!
I don't mind the RPM's in town, just when traveling might make a difference in 4.56's.
Thanks,
04-02-2013, 06:24 PM
#22
JK Freak
Join Date: Aug 2011
Location: Fernandina Beach, Florida
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Hitting 2700 rpm's at 70 mph and averaging just over 17 mpg's. At 75 things go south, pushing 3000 rpm's and mpg's drop to around 15.5 to 16. Keep in mind this is on a measured 34" tire.
04-02-2013, 06:30 PM
#23
JK Freak
Join Date: Dec 2011
Location: Seminole, FL
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Thanks for the reply.
04-02-2013, 06:56 PM
#24
JK Enthusiast
Join Date: May 2012
Location: Colorado- West of Denver
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Great info. I have a 2 door auto 2012 and am getting 35 MTR Kevlars. I'll leave it at 4.10 and hope my trips up the mountains and offroading, don't leave me with a craving to regear.