Another gear thread
07-29-2015, 06:52 AM
#1
JK Enthusiast
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Another gear thread
Good morning, I just got the green light from the wife to drop off my 2014 JKUR auto to EVO for their gear change special. I am currently on 35" Nitto Trail Grapplers with 4:10s. This is my DD with about 10% mild to moderate trails in the So Cal desert. My question is 4:88 or 5:13 or something else. I want a compromise of fuel mileage and trail ability......
07-29-2015, 07:23 AM
#2
JK Freak
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Do you have an auto or stick. I have a 2dr rubi with 4.10 and 35s. Runs get and I get about 19 mpg all around. If auto maybe 4:88 but will let those with more experience speak up.
07-29-2015, 08:16 AM
#3
Shoeless, we normally run 4.56 gears with 35's and the new 3.6L. You could step up to 4.88's and that would cover you up to a 37" tire. Anything deeper than that and it gets really high on RPM on road and hard to generate any wheel speed offroad.
-Tim
-Tim
07-29-2015, 09:25 AM
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JK Enthusiast
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07-29-2015, 09:42 AM
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JK Freak
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This reflects my suggestion, too. Everything I've read on the 3.6L and 5-speed auto suggest 4.56's for 35's and 4.88's for 37's. From 4.10's, you will likely see increased performance in the form of torque and a possible increase in fuel economy, but I wouldn't expect anymore than maybe 1-2mpg at best. Ultimately....you bought a Jeep, not a Prius. Then added bigger, heavier tires to it.
07-29-2015, 12:54 PM
#7
JK Enthusiast
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I appreciate all the replies and just got off the phone with Drew @ EVO and he suggested that 4:88 was what they installed the most for 35s. Their $999.00 gear special is hard to ignore. Thanks...
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07-29-2015, 01:01 PM
#8
JK Enthusiast
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Tim, I will concede that there is always the possibility of going to 37s later, especially after you run another ATX special.....
07-31-2015, 04:27 AM
#10
JK Freak
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No shit! Cost me $1100o to have mine done and that was me buying the parts ($550) and having a buddy install them for the cost of buying the tools he needed to do it. Even Tribe 4x4 gets like $1700-$1800 for both axles, which is still pretty decent.
