Originally posted by junkyardjeff
What is the difference between positraction and limited slip,I am getting a dana 60 with limited slip for my 66 F250 and I would like to know if there are the same or different as I never had a vehicle with either. Jeff
Most sold as an OEM unit are the same. Each car company used to have their own name for a limited slip unit. Chrysler was Sure-Grip, I think Chevrolet used Posi-Traction, Studebaker used Twin-Traction, etc.

There are different types of rear differentials that do different things such as spools, lockers, etc.