From what ive heard and read regearing to 4.88 you would loose alot more highway speed and gas milage. 4.10 would be less of a impact im sticking with my 3.73. If it not broke don't fix it lol
I have a 2.4l se tj love it. It may not pull hills well on highway but it is a beast on the trail. I have the factory 3.73 gears on 33s and a 3 inch lift. Its the little jeep that could.