Depends on which flares I'm sure. I have all new stock height suspension with 32x11.50 tires on my 70. They rubbed a little on the radius arms when I turned sharp. One of my favorite things of driving old broncos is the amazing turning radius so I got the smallest wheel spacers I could find and they made a huge difference. See my pics and see how it sits. 33x10.50s you could get on no problem, but 33x12.50s you may have rubbing on the radius arms. Hope this helps some.