Cab body parts?

I noticed that the plastic strip at the top of the roof behind the rear door is missing on both sides of the cab. I assume it was plastic and over time it cracked and blew off somewhere on the highway between hither and yon.
Anyway, does anyone know what those two parts are called? Aoart number perhaps? I'd like to order them and install them back on the truck. Currently, it kind of looks like a head with a receding hairline in the back (with the pieces missing), and I'd like to have the truck top look like a mullet again.
Thanks in advance.

short_stuff