New Gears
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New Gears
So I lifted my jeep 4" and put 35" tires on it. I am getting the superchips flashpaq to reprogram my speedo and other adjustments. Should I put a new gearing in it?? If so what gearing? I mostly use my jeep as a daily driver but do some off roading at places near my house but nothing to serious. Any ideas?
Last edited by acorkum; 12-08-2010 at 12:55 PM.
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Open the faq's linked above and start plugging numbers into the chart.
5.13's are as low as you can go with your front D30.
(if you have any plans of swapping to a front D44, then wait and go with 5.38's)
Also, see page 3 here for some good info from planman that may help...
https://www.jk-forum.com/forums/show...itude%29/page3
Auto: 5.13s is BEST. Do you drive on the highway often? If so then consider 4.88.
Last edited by nthinuf; 12-08-2010 at 02:42 PM.
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Originally Posted by nthinuf
There is quite a bit of evidence that this is incorrect. Higher rpm's will let you stay in OD without downshifting, which raises rpm's a lot higher, which reduces mpg's...