Are you talking a locker or a limited slip rear axle? Ol Blue had an open rear axle, but with four wheel dive if I got mired I'd just grab the 4wd lever and go. A locker will wear tires faster and be more squirrelly on ice. The new truck has limited slip and I like it because I don't need 4wd as often, but I don't go looking for mud holes to stick the truck in as I've gotten older and wiser.

My other auto is a .45

The bitterness of poor quality is remembered long after the sweetness of low price has faded from memory