The Rubicon Trail is one of the toughest in the country. Though some of the most truck-destroying obstacles have reportedly been made less trecherous in recent years, the trail is still a grueling, 12-mile challenge. If you’re interested in tackling it, check out this video review from Terraflex. It’s one of the first I’ve seen that gives a good overview.
This is a 10-out-of-10 difficulty trail. Stock trucks can make it with difficulty but should expect damage. According to the video, 35″ tires, lockers, and 3″ of lift could be considered baseline for making through without undue stress.
If you do go, do your research, and don’t go alone. I’ve included some links below to get you started.
Thanks to Greg from gadmachine for suggesting this video.