I have a 2011 XLT 4x4. Putting a 2" level in it and getting 325/60-18 tires on 18x9 wheels.
Can I get away with a -12mm offset without any rubbing issues or should I stick with a -0mm offset?
I love the look of the tires coming out from under the well a few inches but I'm concerned about rubbing.
ANy advice is much appreciated!

 

I'm pretty sure you need around a 5.5" BS and + offset like 12mm or so.

 

Others have already tried putting 325s on stock rims (+44mm offset). VERY little room for error with that wide of a tire. If you are going to use stock wheels you will need 1/4" spacers (if you feel comfortable using them). Otherwise get some new wheels with +30 to +35 offset

No way a -12 wheel will work, I don't think a zero will work either...
You're not gonna get the tires sticking out a couple inches unless you get a smaller tire (approx 33x12ish)