Help to ID this Pontiac trim?
 

I need some help to ID a couple chrome pieces. I am pretty sure they are Pontiac pieces, but I don't know what they are. They appear to be LH and RH pieces. Part numbers are 9829788 and 9829789.

Thanks in advance

The part numbers don't show up in the PY online parts database, but it isn't necessarily 100% so they could still be Pontiac. You may want to mention their size, or post a picture with a ruler next to them.

The reason I assumed they were Pontiac is that, when I search my online source, the number shows up on a long list of discontinued Pontiac part numbers.

I'll try to measure them later. To give you a general idea of size, they are laying on the bottom drawer from a '70s Snap On tool cabinet.

Justin, the molding is stainless? From your 2 pics, I can't tell if the top of the molding curves/ like a "bead". Beaded edge stainless trim typically butt up against a vinyl covered thin cardboard panel.
9829xxx start showing up for 70 & 71 parts. Interestingly enough, 7829790/1 are rear power window regulators for '70-72 Pontiac A-body 2 drs.

In looking at a '77 dated Pontiac parts change notice book & my 3/72 Pontiac Master Parts book I don't see either number, though from the length I would expect both parts to attach, possibly inside on the rear window area. How long are these pieces?

That noted:
-not 2nd Gen Bird,
-I'm a 71-72 Pontiac A-body guy & don't recognize 'em.

Sorry the picture kind of sucks. There is a tiny bit of overspray on one of them so it would be something at least partially outside(possibly drip molding?). It does have a slight curve toward the ends, but it is pretty minimal. The thing that threw me off a bit is that they are a cast chrome part rather than stainless or aluminum.

Looks like early 70's Eldo window trim, like sash or belt.

You may be right. I wonder why I'm having such a time finding the part number anywhere. Are Cadillac part numbers some closely guarded secret? I usually have very good luck with GM numbers.