Disassembly of my 72, I noticed the difference in trim. I'm guessing from a Chevy, Pontiac or Oldsmobile.... see pics comparison.
That’s only the second one I have seen too A buddy had a 68-9 special we took apart In the 90’s that had that trim Musta had the wierd wiper motor too Back then it didn’t matter post sedan Parts rig Had 150 plus Abody 68-72 since never had another
I've seen a few but not many. Never parted any other makes but I'd think those parts must've been used on them. Hard to imagine it'd have been economical between engineering & tooling costs if any of it it was Buick specific.
Yes-those were used on other GM brands (whenever you had the non-depressed park as already mentioned).....Olds, etc. Those models will use a wiper motor that is all black w/sort of a rectangular-ish "motor" that sticks out a ways from the firewall.
My 72 Skylark had non-depressed wipers and was missing the lower windshield trim. I pulled a piece of depressed park trim out of a junkyard Skylark not knowing there was a difference until I read into it some more. I still have the box of parts floating around in my garage with everything I would have needed to convert the car to depressed park.