Not truck related, but someone got stuck on our hill in a ditch. They had a Toyota Celica.
I was coming up the hill and offered assistance to pull them out with my tractor. The driver said its no problem, as he had a limited slip differential. And he backed it off and got right back on the road. In a situation, I thought needed towing. This made an impression, as to why some companies, didn't include limited slip differentials on vehicles, clearly designed to tow things like boats and campers. I can't forgive Ford for allowing and putting a non-limited slip differential in the G30, with a towing pack, I bought. It made the whole point useless.