I have read in several places that Ma Mopar would brush on a green primer between the door hinge and the body. "When you take the doors off you see a green primer between the door hinge and the body. This was brushed on in several areas to prevent rust." Mopardiy.com My car is a 1973 RR and when I pulled the door I found more like a sealer than a primer between the door hinge and the body. Anyone else find this, or know what was used? It was also in the threads of the bolts and thick which makes me doubt the primer idea. About to put the doors back on so I was curious. Thanks