Hey Guys i just put on 35's and lifted my jeep to 3.5 in and i am running 3.73 Dana 30 front Dana 44 rear it is a sport 2011 3.8 engine automatic. I went to Tahoe this weekend and the jeep sucked on the hills. I want it to have good highway manners and off road manners. So i am not sure which is better 4.88 or 5.13 i drive an the highway around 70mph cruise control and now i cant with the 35's.

 

Id like to know the same!

 

Need to know your engine and tranny...

 

I hava an auto sport 2 dr, 2,5 lift, 35s and changed from 4.10 to 5.13...
Nigh and day...
At highway at 70mph I have 2350rpms, noce at the cruise control that I use a lot!!

 

Sorry 3.8l auto

 

Ops, for me 3.8 auto

 

Go with the 5:13 I run 12.50/35/17 Goodyear MTR'S Auto 3.8 JKU . Also you will want a Superchip Flash-PAC to dial in your shift points and tire size. This is what I run and have for 18,000 miles. Love the gear choice.

 

I would go with the 5.13's

 

First you can't do a Flash-Pac, 2011.

I am running a 2 dr, auto, 35's, heavy with options, and 5.13's.

The in town control and acceleration is assume . Gas mileage is good at 17-18 depending on how I drive or 15-16 with that lead foot.

It turns 2650 at 75 on the highway which is a little high, but I am in OD with cruise on and it doesn't kick down much.

Mileage hurts at 15 at 75-80 and 18-19 at 65. I do 75-80......

I thought at first I should have gone to 4.88 but once off road, I am very happy with this gear.

Any questions?

 

I agree with going to 5.13s. A super chips flashaq will also liven up the engine, I run the 91 tune and find I get better mpg's and power with it.