Redog, did you add those taillights later on?
I have only seen those on 81-83 deltas.
I see that you have the 85 royale split grille,
for the royale and not the one piece silver waffled one for the brougham or wagon.
so if it's a royale, your lights should have been half yellow I believe.
I def think the 81 lights look cooler on that body style than the 1/2 n 1/2s though.
I own or have owned one from every year from 80-85 except 82
....My fave Olds'.....
If ya have an 85 Royale, 442.com says there are only 15002 out there.
What number and plant is yours from......They might just share a birthday.