Brandon09JK

Im running 33" Goodyear MT/R with kevlar and im not getting that great gas mileage...do i have to change my gear ratio? i know you can get away with running 31's without changing it and be alright but what do you guys think? looking for any tips about this, thanks.

woodyvw9

What are your current gears? What year JK?

Most don't regear for 33's. I have 4.10's on an 2008 and I did lose a little power/mpg but nothing drastic.

Brandon09JK

Whatever the stock gear ratio is, im thinking like 4.1 but could be wrong...and i drive an 09.

jrr1631

Do you have a rubicon or tow package?

jrr1631

If you got 4.10s your fine, but even without personally i wouldnt regear

Brandon09JK

Its a rubicon yeah. Im hoping to be able to lift it soon but we'll see what happens, thanks for the help.

Whiskey Bravo

Agreed; no regear.

33 is one inch from stock, and 410 is highest stock gear option...

Just think about it, some people are running 321 gears on 32" tires... (not that i could imagine doing that, but you get the idea)

TheTerminator

You're not saying what kind of mileage you're getting, before and after. Your mileage could be relatively fine. Or it could be your lights on the top killing it.

combolc

Agree, I have 373 with 33's.. 410? your good... I dont know what kind of MPG you expect but I get 15MPG its a 2012 though

bob-o

Just buy an air intake and Maybe an exhaust so ur engine can breathe a little and even gain a few more ponies under the Hood that should help with the mpg