Definitely 24's. It helps a lot in the mall parking lots.

 

I would second that. My 40 on a 17 is just too much sidewall... Lmao

 

One thing to consider, the extra girth of the Dana 60 front axle. Other items need to be considered when trying to increase up travel, like where the raised trackbar bracket hits the frame, and where the bigger Dana 60 housing hits the trackbar. Forget about using a JKS trackbar, or you really have to limit up travel when its used with a Dana 60. At least that is with a Dynatrac Dana 60. A Teraflex 60 or Currie 60 that has the top of the differential rotated backwards doesn't have the clearance problems with the trackbar. We maximized suspension up travel within the limits of the Dana 60, and ran 35s on it. The set up was not changed with 37s, and the fenders still clear the tires. So up travel wasn't limited by the fender flares, it was limited by other items (axle size, raised track bar bracket).

Here is what it looked like with the JKS track bar, and the axle wasn't even against the 4" bumpstop yet. The differential cover was clearanced, and we changed to a Teraflex trackbar, and gained more up travel than in this picture. But you would still be hard pressed to use shorter bumpstops, without having other interference problems before the fender flares.

 

Something else to consider is power. I am running 38s on 1 ton axle. I can easily go bigger in with my current set up, but no matter my gearing, highway speed is the limiting factor.

So for now, I am running 38s. And after my super charge dies, will go to an ls and 40s

 

imo 40s on a non stretched 2 door is to big of a tire...id want at least 4-5" of stretch MINIMUM.

 

damn mine wasnt over 300 even...

 

If you don't mind could you pm me what exactly you did/used to keep it under 300? I'm mostly likely going to hydro and would really appreciate it.

 

Originally mine was 400 in parts, but then I killed the stock pump... twice.

 

Coming from someone who has a 2013 two door stretched JK.... What in the heck are you thinking about 40's for?

I've seen 40's on a two door. When you do find yourself with enough lift to stop rubbing on a trail... goodluck climbing anything. You're going to have a big chance of tipping over compared to fours doors. I've almost flipped my jeep with 33" tires back in the day because of the short wheel base alone going over an obstacle when my buddy with 35's and a four door went over before me using the same tract and had no issues. I run 37's with a 4" Lift on my two door and had to stretch the rear axle and trim the pinch weld seam(Not sure what the one person was talking about Jeep trimming them in production for 2013+ JK's). Also installed a Drag Link Flip Kit, Reid Knuckles, TEN Axle Shafts front + rear, Tom Woods front + rear Driveshafts, 5.13 Gears, Upper and Lower C Gussets, Inner Axle Sleeves, 1 Ton Tie Rod, TF Big Brake Kit, and over course HD Ball Joints. All those things were installed just to feel comfortable wheeling my Jeep and not having to feel like I have to baby it. I'm still planning on picking up a Sector Shaft Brace and Hydro Assist soon aswell.

Just my .02

 

Agree that 40s on a stock setup 2-door isn't ideal. That said, there are plenty of guys running 40"+ tires on 2-doors that are bad a##. Rubbing means your axles aren't wide enough and/or you don't like cutting sheet metal.

Define "stretch"? Those who do run 40s generally have a total of 10"+ of combined front/rear stretch.

You can run 37s with 2.5" of lift all day long. I did and with 14" and 12" of travel.

Being unstable is a suspension issue. Happens when you get a tall off-the-shelf lift (like 4.5" for a two door on 37s). That combined with large tires and not cutting metal for uptravel results in instability.