Retractable shoulder belts

I bought a set of double retractable belts from a newer A body(74 maybe?). So they retract both for the lap and shoulder belt. The only modification I did was to remove the rear door panels and tuck the shoulder belt retractor roll inside the rear seat panels. And they can use the same anchoring bolt as the rear seatbelts. I just drilled one hole in the retractor mechanism and through the inside metal frame next to the rear seats to hold the retractor. then the only visible modification is to cut a slot into the door rear door panel to let the belt feed through to the roof mount for the shoulder belt.

It works well.

The Big E