Roof rail stainless on 69 Cuda fastback

Though not exactly an answer to your post, if you buy a catalog from Year One, it will have LOTS of Exploded View diagrams in it with the proper name of many parts (and some part numbers). The nominal charge for the catalog is offset by the coupon applicable to your first order they conveniently bury in the back of the catalog. By the time I found mine it was already expired.