I can't comment much other than that they no longer supply the GM logo buttons due to licensing issues. They appear to be the closest out there to original belts, for 78-81 models at least. There are differences, annoyingly for some, those differences don't need to be there in some cases. They also offer a rear 3-point belt option but retractor is on parcel shelf, may be seen as a safety upgrade even though not strictly original in appearance or to early 3-point option which should have evolved and been retained by GM. The front seatbelt stalks at console appear to be 1" longer than stock and the sleeves are not to original style, largely unseen but the visible tops are also where many differences are apparent. The side belt mounts next to the seat have no covers at all, and do not have the bolt hole to add the factory covers. The webbing is/was current 7-panel standards, as opposed to 4-panel. The buckles had black pebbled covers, regardless of webbing colour, or even if they are the deluxe version that should have used smooth chrome. For legal purposes, they claim they don't interchange with used GM belts, but are copied off them, so may work if tested. But I don't have a set, I only investigated them and found that while popular with many, still weren't a legal swap here in Aus.
