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.