Again, I run 33s on 4\" backspacing with 2.5\" lift. On the street, I don\'t get any rubbing at all. In the dirt, it only rubs on the most flexy parts where the tires will get into the fenders a little bit (sway bar disco\'d). Because you do not have extended flares yet, this is where you\'ll see and hear it the most when twisted up. If you leave your sway bar connected, I think it\'ll be really pressed to rub at all in the dirt.
Test your rig out to ascertain your own limits.