67 Dart shoulder harness anchor?

I'm beginning to think they don't have the overhead anchors. If you look at the link I posted for the original options packet, they show:

The photo depicts a 'vert, with the belts obviously fastened "behind" somewhere on the main body.



But the part number shows the same number for all cars!!! (A bodies) This would SEEM to indicate that the same belt and same anchor is used whether convertible or hardtop