With the rear cut only, and one inch of lift, you should have zero problems with anything between the 31x10.50, and 32x11.50 of 15" sizes. If you're running stock 15" wheels as opposed to some optional stock 16's (make sure which you have) then those are the two main choices.
The 33x12.50 size will fit the rear, but very possibly rub the front. At the very least you will have to trim the inner fender "lip" that hangs out past the pinch weld. It's inside the wheel well and nobody would ever know it's missing though, so don't hesitate to trim it if you end up needing to.
The fact you're going to use stock size wheels will help with fitting tires in the front, but will practically eliminate the use of the 12.50" wide tires. Not that they won't fit, but that many shops won't mount them anymore because it's out of the normal recommended range of normal use. Might look funny too.
Modern metric size tires can be in that same ballpark, and tend to be slightly narrower of section-width too, so might get you taller while still fitting a stock width wheel. Not sure of the actual usable sizes, but I'm guessing in the 235 to 255 width, and 75 to 85 profiles.
Someone has probably tried it and can give you more accurate info.
Got some pics of the wheels you're talking about? Since you're not a "contributor" yet Eric, you can either upload them to a free image hosting site and link to the location here, or e-mail them to me and I'll post them up for you.
Just helps for us to get an idea.
By the way, most of the tire sizes I talked about will actually fit on a stock height Bronco with cut fenders. You're gaining a little with the 1" lift, but not enough to really get into the meat of larger tire sizes typically.
Paul
