Thanks for the info. That '69 pace-car with the front and rear sholder belts sure has a lot going on in the back seat.
If I do something for sholder belts in my '69 it will be with a retractor. I had a '70 Camaro with factory sholder belts and they were very restrictive, the belt had to be un-hooked to change the station on the radio. Needless to say, they were hardly ever used.