To start here's what I have: mildly modded 305, 200 trans, peg leg 3.73 rear, 225/60/15 fronts (might change they bulge more than I'd like), 295/50/15 rears. The rears have about 1/4" clearance from the frame & don't stick out but do run under the lip. I'm weighing my options as far as posi but...