Well I went with the 285 70's They will fill my needs better. I loved how the 35's looked on my 07 and if this jeep have 4.10's like my 2007 X did it would have been a go but I want to keep my MPG's up for long haul driving!

thanks
Nate

 

An 08,I had a 08 with a auto you can't even compare the two. My 08 had trouble turning 32" on the HWY.

 

I have the same set up and totally agree. 1st gear is actually more usable now that it was stock. I don't shift to 6th until 50+ now on flat stretches and don't use it at all on any decent grade. Sorry I couldn't answer the OP's question but from what I've heard the new engine/tranny combo make a huge difference in the auto as well.

 

With my set up.....325/60/18 on 18x9 Artillery ATX wheels 2.5" coil and spring lift from TF I can pull the long gradual hills in middle Georgia and actually gain speed......but remember, I am an inch short of having 35's.....the '12 is more powerful than you would expect. I was actually thinking about a re-gear, but until I get into the serious wheeling.....ain't gonna happen.

 

On my 2012 I run 34" tires and I have an auto with 3.21 gears. I am right around 1800 rpm at 70 mph. I think you will be fine with 3.73 gears.

 

You'll be fine with the 3.73s and 35s. If I was dropping gears in to get there, it wouldn't be my choice, but for tires that will work with an existing gear set it's fine.

Here's a preliminary chart I posted this morning. Note speeds are at 70mph.

 

I'm running 35 nitto trail grapplers on my 2012 jku with 3.73s
In my opinion it still has plenty of power

 

Hows the gas mileage on that? I have a 2012 JKU auto and I want to run 35's but I dont want my MPG to be in the 14 range....

 

I have the same setup on mine and I get around 16-17. I can't wait for a tuner to come out for the 2012's. That will be 300 bucks well spent.

 

Have you heard any rumors f when those new programmers are supposed to come out?