New regear on the 2012
#1
JK Newbie
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Join Date: Jul 2013
Location: Daytona Beach, FL
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New regear on the 2012
Just got my jeep back from the shop after going from 3.21 to 4.56 with 35's. only question i a ask myself is why i didn't do it sooner? its a brand new vehicle! for anyone questioning whether it is worth it or not. coming from someone as skeptical as me. Do it! i used G2 gears with install kits. my jeep went from a dog to a doll to drive.
#2
JK Newbie
Join Date: Dec 2011
Location: Portland, Oregon
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On the list of wants. 3:73s currently and it's ok but I'm thinking I should upgrade. I was living with it thinking I might be getting better gas mileage, but I don't think it can get much worst thanks for the info!
#5
JK Enthusiast
Join Date: Jan 2013
Location: Manassas, VA
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Sent from my iPad using Tapatalk HD
#6
JK Junkie
I have a 2013 JKU Sport with the manual trans and 4.56s. On 35s I was running about 2700 RPM at 70. Now on 37" MTRs it's right about 2500 RPM. Still has plenty of power and crawls well off road. My wife has a Rubicon with 4.10s and 35s and we have similar rpms, but man does her 4:1 transfer case rock! I see an atlas in my future. Sent from my iPad using Tapatalk HD
Curious because I am changing gearing and would like to know if the charts are wrong.
#7
JK Freak
Join Date: Aug 2011
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I have a 3.6 auto with 4.56's, speedo has been verified by GPS and I'm seeing 2700 at 70mph. The difference for me is my "35's" actually measure 34".
Last edited by flatattack; 12-05-2013 at 04:23 AM.
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#10
4.56's it is. Thanks for the great info.