I haven't spotted a J-body in the wild since,,,,,well,,,,,I don't remember when. For that matter an M-body or F-body, other than the '78 Aspen parked by a house down near work, which I'm still attempting to find out what's up with it. Right now it's covered with a foot of snow

I've stopped by the house 3 or 4 times and nobody is ever home, at least when I'm able to stop after work at 4:30 pm.