adding rear shoulder belts

Judge Mills said
Off the top of my head, I'd say if any one added them, it'd be from a cage. Adding the mounting point to that sheetmetal may be a concern, since it was not engineered for that stress in the event of a collision.

???I would think that any Duster would already have factory shoulder mounts. After all, they weren't made before 70.

I think he wants to add a retractor to the existing shoulder belt