Help Needed........ GEARS.....
Stuck to the top of this modified area, not up on top of the forum. If the links 'still' haven't been fixed, just scroll down.
(open modified area, look at the first couple of threads at the top. It will be the one that says something like "sticky: MODIFIED TECH FAQS")
(open modified area, look at the first couple of threads at the top. It will be the one that says something like "sticky: MODIFIED TECH FAQS")
Last edited by nthinuf; Jul 5, 2014 at 10:46 AM.
Trying to decide if I should switch out the gears on my 09 JK, drive about 60 miles a day to work. It is not sluggish with all the mods that I have done so far, but the mpg just keeps tanking, getting close to single digits on the highway. Also have a lot of gear searching. Any help would be greatly appreciated.
You need 5.13s with the 3.8 auto. I run them and they are perfect. I do a lot of hwy driving as well.
While crossing Colorado I wish I went with 5.38s but I doubt it would of helped too much with the altitude.
While crossing Colorado I wish I went with 5.38s but I doubt it would of helped too much with the altitude.
X2 I just upgraded to 5.13's in my 08 Rubicon and it is the way to go. I am running 35's and get about 14mpg on average.




