The only tires your going to find in 33"x11.5" are the super swamper thornbirds which are pretty much useless as a tire.
Are you talking about 33x12.5's fitting without a lift? If that's the case, then hell no! I have a 3" body lift with a slight torsion crank and my tires rub while turning in reverse and sometimes when turning hard while going forward. I guess it would depend on the backspacing of the rim too. Youre not going to be putting a 12.5" wide tire on your 7" wide alcoa are you?
Here's my truck, most recent pic I have
'03 Level II w/3" body lift and 33"x12.5" mud tires on 15"x10" mickey thompsons