I was woundering if i can fit 32 11.50 15's bfg AT's on my stock 90 4runner and will it rub at all. Or should i stick with the 31 10.50 15'S

 

i hear some people run them with no problems. search around a bit, because i am not sure.

 

the general consensus is 31's will fit fine... maybe some minor rubbing issues when the front tires get shoved into the wheel well and the wheels are turned.
given that, a 32" tire has a 1/2" larger radius... so if the 31 works with some minor rubbing, a 32" will fit with some significant rubbing (may be compounded by a 'wider' 32" tire).
but if you never find yourself with the front tire being stuffed up and the wheels turned in such a way that it rubs, you're fine.

 

The only thing my 32's ever rubbed on was my valance

 

My 32x11.5's rub pretty bad on sharp turns. Have not flexed it enough to see what it does when stuffed.