Okay... I got stuck again on Friday night. I tried to turn around in turnout on the side of the highway and much to my surprise the turnout was soft powdery dirt. Eventually I was able to back out by digging out the 6" of soft dirt on top about 10' back from the rear wheels so I had some firmer dirt to drive on.
However, I've decided my RWD van needs something better than an open diff. I'm not going to be paying for a 4x4 conversion, and I'm not going to be doing any rock crawling. I do plan to go on dirt roads frequently, but they should generally be fire roads, forest service roads, and the like.
I've been watching the recent LSD vs Locker thread, but I still can't decide which way to go. The TrueTrac is very appealing to me, and those that are in favor of LSD seem pretty confident that LSD is all you need to get out mud or sand. But, is it really that easy?
I can't help but wonder, even with a locker, is that going to get me out if both rear wheels are in powder, mud, sand, or ice? Won't I just have two wheels spinning in the sand in perfect unison?
At some point I'll be getting new tires, probably the BF Goodrich all terrain. That will certainly help. I'm not really trying to build a monster offroading machine... The majority of my miles will always be on highways, but those last few miles are usually on dirt... that's where the good spots are!