8.8 explore to ranger question

[dezert ranger]

have a 91 explorer 8,8 rear diff which is 3 " wider than stock ,how wide a tire can you run and still clear 4 " fiberglass bulge fenders,i have 32 x 11.5 s and 33 x 12.5s ,my rims are the mickey thompson simulated beadlocks that have some offset,dont want to try and mock up and reweld springpads unless i know it will work with wheel and tire combo,Thanks ,