Howdy, so I am in the process of doing some patching on both of my front fenders on my '57 half ton. Looking at the front fender extensions that rivet to the fender there are staples punched through the fender extension as if there should be a seal there between the ext and the front of the fender. There wasn't one there when I tore everything apart a couple years ago. Should there be a seal there and if so what seal is it? I don't see anything on any of the usual parts sites for this area.

Pics of the area: Extension1 Backside Extension2