X3, 4, or 5 (whatever we're up to now).
I had Thornbirds on my old rig when they first came out (many years ago). Got rid of my BFG Mud TA's for them. They are very noisy, don't wear well, and don't do well in Sand, Mud, or on Rocks. I wish I would have never got rid of those BFG's......
Learned my lesson, and went back with BFG's went I started working on the Jeep....no regrets on that one!