I am not sure of all the details as I am working that weekend, but you can check at nw-wheelers.com. There is a thread there.

Here is the link:

http://nw-wheelers.com/forum/showthread.php?t=47614

If you haven't been to Walker lately, check it out. There are a couple of obstacles, one in the new "learning area" and the rock face on Expressway that routinely defeat all but the best vehicles. Like all wheeling areas, they change daily. One guy from out club has made the crack in the learning area but was defeated by the rock face. Yet I have ridden with him when he made the rock face and a fully tricked out TJ on 40s didn't make it. (He runs a Toy truck with dual cases, beadlocked 35s, etc.)

What are you running?