tyres
You will be okay with 32" tires and some 33" tires if they aren't too wide (around 10 1/2") This would also be = to 285/70/17's.
Good luck.
Browse the Wheels and Tires section when you get a chance. Lots of good info there in the FAQ's.
https://www.jk-forum.com/forums/modified-jk-tech-2/modified-tech-faq-answers-questions-every-newbie-has-18617/
https://www.jk-forum.com/forums/modified-jk-tech-2/modified-tech-faq-answers-questions-every-newbie-has-18617/
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I actually ran 295/70/17 (33.5"x11.5") on stock suspension for about a week prior to my lift. I did have wheels with 4.5 back space though. The only rubbing I had was at full turn it would hit the plastic under the front bumper. I wouldn't off road that way at all. With stock rims it would be a bad deal. 

JK Super Freak
Joined: Apr 2008
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From: Guam - PCSing to McGuire AFB, NJ in July '09
The 285 would be narrower than the 295.
The 285/75 isn't wider, it's taller.
Here's the breakdown: 285/75 295/70
sidewall Ht= 8.4" 8.1"
width = 11.2" 11.6"
diameter= 33.8" 33.3"



