I wish they were THAT big...I had 245 75 16s which equate to somewhere near an optimistic 30". Let's see, I drove down to Reno from WA, wheeled Fordyce, dropped off the wife at the airport, then headed back to WA for work. Winch was my friend on that trail I tell you what.
Chicago should have no problem making it through Fordyce trail. Furthermore, spotting is a requirement for these types of trails and has nothing to do with whether you're a good driver or not. Unless of course, you're driving a buggy and no body damage to worry about
Inverness is all over the Fordyce trail and I may just have to fly in for that one....again!!!