Hey folks...I have a '91 YJ, 2 1/2" Rubicon Express lift on factory aluminum wheels and 31.1050x15 BFG's...Need a bigger tire and need a wheel with less backspace but,, have no idea what...What are my limits as you see them.
I have the same tire on my stock YJ with stock rims as well. Since I have no lift I would rub for days with any real flex. 2.5 inches would probably tuck the 31s nicely. I would ask why you NEED bigger tires? Of course it's your money and saying you have 33s is fun, but if they will rub then why? I'd keep the tires and get some soft 8s (google em).
If you just need new tires b/c the BFGs are worn, i would suggest staying 31.