Most car guys know what a limited slip differential is. They probably also recognize Positrac – or Positraction – by other marketing names used by the Big Three manufacturers, such as Sure-grip, Traction Lock, Safe-T-Lok, and so on. Well, I’m a car guy from way back; I got my drivers license in 1972. (Please hold those age jokes.) As is typically the case with older more intelligent car guys, I have a special appreciation for domestic cars built in the 67, 68, 69 and 1970 model years: those built and roaming the streets while I was counting the days until I could get my own drivers permit.
So, what did I learn during those formative years, when I had more brain cells and my synapse connections were still being hardwired?
