A few years ago, on the way to the Utah CCR, I was in MT and ID (I know on the way to Utah from St Louis.. a little detour.)
I took my LT on a "shortcut" between highways that turned out to be all gravel. The LT seemed solid enough, but the sound was horrible.. I thought it was going to shake apart..
I slowed down a bit, but that didn't seem to help.
I had it max loaded, and there was a lot of washboard, but that was the beginning of the end for me and my LT.. I traded for a GS/A shortly after that.. (I always am solo too, that was another reason.)
I have a Alaska trip on my "bucket list" I'm 55, and work prevents me from taking a month off. Marriage prevents me from extended "solo" vacations. (I want to stay married..
So, when I go in the next few years it will be a quick one, where I miss 90% of what's up there..
If I still had the LT, I would still go, just try to stay as much paved as I could.