1970 shoulder belt retaining clips

[Dennis K]

I have seen in 1970 Chargers that there are some clips along the roof rail to hold the shoulder belts in place, and I'm curious how hard it would be to retrofit them into a 68. I've never seen how the clips are attached to the car. I like to drive with my windows down, and I don't wear the shoulder belts, and I don't want them flapping in the wind hen I'm driving. Thanks