The last time I was in Moab I ran into a local guy running dual cases, lockers f/r & 36 inch tires.  He was carrying a set of aftermarket birfs that he was carrying to swap when he broke the stock ones.  He had been carrying them for more than a year.  His truck was tube from the cab back and he wasn't afraid to go the nasty places, but he drove very smooth and smart.

He was wheeling with the builder/1st owner of the Army Green 85 Toy with all tube work behind the cab that has been sold on ebay a couple of times.  Some of you may recognize the truck.