This came out of a 79 Wagon which looked stock to me. I will try to find it on some part fiche's which are out there. Just strikes me as an improvement ... although this came out of a 79'. Funola has this type in his 83 & 85 ... so maybe it was an odd ball type ? Like I said, I have never seen one like this and I have seen a lot of W123s at the yards over the years. In any event, it works just fine from what I can tell.