I have a 2005 2wd ford expedition. looking at putting a 295/50/20 on a 9-10" wheel with either 5.5"-6" bs. (haven't decided on the wheel yet) My question is this, is that about the largest i can go without rubbing or any complication?

 

I have 305/45-22's on 22x9.5 inch wheels with 6.7 inches of backspacing. This is as large as you can go.