So It looks like I've decided I'm going to go with 37 inch tires. Upgrade should be getting done hopefully before Cleghorn. The issue I'm having now is deciding on gears. 4.56 or 4.88. Keep in mind I'm in a 2017 JK.. I've heard from guys that run 4.56 gears on 37's and are very happy with it. Saves on gas for highway use and still plenty of power off road. Has anyone here ran 4.56 gears on any of the newer JK's with 37 inch tires? I read a chart that shows 4.56 gears would be the perfect medium between daily driving and offroad... 4.88 would be slightly on the higher end of RPM's. How much of a difference this actually makes in terms of miles per gallon I'm not really sure.... Also the 4.56 gear would be stronger due to the size.
What are your thoughts?
I've attached the chart.
You should compare your current (stock?) tire/gears to your new selection. If you want the same performance as stock stay at the same RPM or better than your stock setup.
For example if your stock setup is 31' tires and 3.73 gears to match your current performance you should go with 37" tires is 4.56 gears.
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