We took a couple T-dubs to Moab earlier this year. They did great! We rode all levels of difficulty and didn't have an issue. We did find some deep sand that made the t-dubs work extra hard to deal with. And I had a few close calls decending steep slickrock, particularly on Hells Revenge.
Here's the thread:
I would highly recommend buying the Moab trail guide book. I have both the 4x4 and atv versions. I prefer the 4x4 version as its geared more towards street legal vehicles (like 4x4's and dual sports).