I have looked at the gear charts and all the posts here but i still dont know i have a 2011 jk 2 door on 37x12.50x17 BFG Km2's and i off road abit and i also DD so i am wondering which gears are best for both what are your thoughts 4:88's or 5:13's and oh yeah i have a 6 spd..

 

That helped answer it for me right there. Go with the 4.88's if you still want to be able to go on the highway with the 6-speed.


(If it were an auto - it would be the other way around. I'd send you toward 5.13's or even 5.38's.)

 

I would go with 5.13 just to be on the power side. Less top speed, more power, faster take-off.

 

but like i said i want to daily drive it i am not overly worried about Mileage but i would like to be above 10 on the high way what do you think how would it be on the tank.

 

Don't most guys with 35" tires go 4.88 with a stick?

Would seem that a 37" tire would command 5.13s.

It is a 5% jump 4.88 to 5.13.

It is a 5% jump to go from 35s to 37s, not to mention the extra weight.

Seems no brainier to me, on paper at least.

 

I would normally recommend the 4.88s but looking at your profile, the unavailability of a programmer for the '11s and the rolling hills of Kentucky I'd go for the 5.13s.

 

I just Hope I can Get over 10 MPG on High way lol!!

 

There's only a 5% rpm difference in gear sets, which makes your foot way more in control of your efficiency than the gears do.

 

Very True i was just looking in to that..

 

I voted 5.13s. That is what I have with my 35s and 6 speed. LOVE IT. And I'm ready to go when the 35s wear out and I upgrade to 37s. Highway is fine IMO, but I keep it under 70 almost all the time.