The dealer that I worked at in that era had no problem whatsoever with S-body van turn-around. They were that popular here. So popular that even a nearby Chevrolet franchise gobbled up as many as they could find for re-sale. We had a 5-speed s-body, it wasn't that bad when I got to drive it. We even had an emerald green P-body Duster 3.0L 5 speed that was pretty cool too.