Is yours turbo?
If so the 33's are a nice simple upgrade. The give that bit better diff clearance from rocks and ruts etc.
And they will fit seeing you have the 2" lift..

Imo though pull out the body lift and do a 2" suspension lift. Then you can get springs rated to your load. And a bit extra flex..

33's add roughly 1-1.5L /100k to highway driving.