For just road use they would probobly be ok. Just be careful when turning sharp or hitting driveways at an angle.
My old 80 k5 rubbed off road with 33x12.50 bfg at's (measured 32") on a 4" lift. Never rubbed on street, but came close.
Personally, I'd get them and see how much, and when they rub. An easy inch is pretty easy to install; new Ubolts, new center pins, and an afternoon. It will give you an extra full inch of lift and let you move axle forward or back an inch or so. Then if it still rubs (more than you want to trim) do a 1" body lift. Remember, extended bump stops can help with rubbing offroad also.