They are just 275/55/20s. I was nervous about rubbing because this is the wife's daily driver/babymobile. There is a ton of space to fit 33's with that offset. That's what I'll run next. It also helped that I got these for $215/tire.
I read every page of this forum and didn't see this exact set up.
Rough country 2.5 level with rear block
KMC Badlands 20x9 -12 offset
BF Goodrich K02's-was nervous about this tire as I haven't spoke to anyone that has them. I have had Wrangler Duratrac's on our last 5 vehicles and currently on my rubicon. I will say after driving for just 2 weeks with them that they are a great all around tire and would highly recommend.