REAR WINDOW REVEAL MOLDING CLIPS

[MYFINE79]

I HAVE A 1979 PONTIAC GRAND PRIX SJ, WITH A LANDAU VINYL PADDED ROOF. I NEED TO REPLACE THE RETAINING CLIPS FOR THE REAR WINDOW LWR TO PANEL REVEAL MOLDING. THE CLIP IS GM P/N: 3066259. 6 CLIPS ARE USED FOR THE INSTALLATION. HAS ANYONE ONE OUT THERE INSTALLED THESE CLIPS? IF YOU HAVE , HOW DO YOU INSTALL THESE THINGS. THEY ARE THE CLIPS FROM HELL.
I,M UNABLE TO FIND ANYTHING IN THE FISHER BODY MANUAL OR IN THE SHOP MANUAL.
IF ANYONE HAS ANY INFO., PLEASE LET ME KNOW .