I was wondering if I could get away with having cragars and 31 inch tires on only a 2 inch body lift without trimming. I suspect the lesser backspacing will cause them to rub but I don't know for sure.

 

i know if you do a search in here you will find a better answer...but
i have 31X15X10.5 on stock wheels, 2 inch rear shackle and 1.5 t-bar crank.
i have no problems at all. i believe with the cragars it all comes down to backspacing.
look into that but you should be fine....chk my album i have some pics showing what i have and what the space between tire and openings are.

 

I have about a 2in susp lift and the 31s on stock wheels only rubbed the frame a little, but when I got my cragars with only 4in of backspacing it was fender trimmin time.