Some know, most don't know. I just sold my Rock crawler of 15 years, the T.R.R. years ago did a lot of level 10 trails, over the years we have gone away from the level 10 and do more 7 and under and more easy site seeing trips, which I have come to love, my wife and I get to see more of the trail, in the past is was a short trail breaking down with the tool bag or welder out.
Reason I purchased the 09 Tacoma, it will still have a mild build to handle level 7 trails with no problem.
The club changed so I ( we ) had to make a rig change since
a " rock crawler " was no longer needed.
Plus to keep the wife wanting to go, and our trails were farther away our rig had to change for a better pavement drive. Like to Utah or Buena Vista