I've been trying to make an A990 grille from some spares that I have for my '65 Coronet. After looking at some old photos, it is pretty clear where to make the headlight door and original grill cuts. It is evident that the "added" section of grille goes behind the shortened original grille and the shortened headlight doors. It is also plain that the new section has to be bent a bit in order to fit. My question is how did they originally attach it to the other two sections? It has been suggested that they were only pop-rivetted. Doesn't sound quite right to me though. Does anybody have details on how to do this grille?