I did a toytec 3.5" lift and 1.5" BL. I haven't trimmed anything but I put a ODL bumper on mine. I'm running what equates to a 34ish. See my build thread.
It rubs when its stuffed for sure, so you'll need to beat in the pinch weld.
You will need spacers if your using stock rims.
I wouldn't run more than a 33 without upgraded brakes. You can get by without it, but you will be saying woulda coulda shoulda when you rear end somebody because you cant stop. If you have a deer killer out front like I do, prepare to deal with totaling the guys vehicle in front of you. Plate steel and recovery points are unforgiving upon impact to civilian vehicles.