Hi Ltdave, yes the plant opposite JoAnn's Restaurant is where the magic happened! Advanced Design & Engineering Truck Division for Dodge was located there during those years.

My dad had meetings elsewhere, including Highland Park, and indeed worked in other locations for Chrysler during his nearly 40 years with the company.

I remember he hated going to Highland Park, especially after being attacked in his car while stopped at a light on Oakland Boulevard by a drug crazed zombie back in the early 70's. He had to blow off the stop light and was unharmed, but shaken- and the car was badly damaged by a baseball bat.