the question i have is, how far did you crank the tortion bars? is there about a 1/2 or less space between the upper bumpstop and control arm?

if you cranked the tbars right, you may just have to cut a some plastik from the mudflap area.

i run the 3.75 bs on my wheels and 32x11.5r15 mt/r's
i only have a pml, but i had to remove the plastic portion that the mudflap attaches to completely and fold some metal.