Eh I beg to differ on having to swap out our wheels. I also think you will be suprised how much you can do with your truck without locking the rear and putting it into 4lo.
I run 20s on my rig and have run sevearl trips which were strictly rock crawling. I have little to no rock rash on my rims and my rims are 10in wide. A narrower rim will have even more protection(from the tires), just air down and youll be fine. If you are just going to play in mud I wouldnt worry about.
