69 Dart 4 door cruiser

Not sure what year Ma Mopar started the belt in the headliner 69-70 ?
The 68 Valiant didn't have it,least mine didn't . It would make things easier.
My 69 Dart has that goofy separate shoulder belt attached above the window, as does my 72 Coronet. I found a place that sells a full 3-point belt upgrade that replaces the static shoulder belt. The new belts arrived but I haven't put them in the wagon yet. They should be a nice improvement.