Re: lift kits
I run 33x12.50s on my YJ with a 3" suspension and 1.25" shackle lift (4.25" total) and I can clear them easily. I hate body lifts and would recommend staying away from shackle lifts, though. I would suggest just getting a 4" suspension lift. If you wanted to make sure that you cleared them, you might get a 1" body and/or a .5" shackle lift along with the 4" suspension, but no more than that.
93 YJ/33x12.50s/3" Heckethorn suspension/1.25" shackles