Good points Mike. And yeah, it was a 100 not a Runner but yes, I do believe the front diff broke while using this method. We can speculate up and down if that was the root cause, or it was already worn, or it's the weaker 2 pinion known issue design anyway... but alas the load it saw on Saturday night would appear to be the proverbial last straw.
Matt hasn't been mentioned yet, but Seldom Seen was running chains in the back- he said it felt solid the whole way down, almost no wheel slip at all. Think he was about 4 or 5 in line, out of 11.