My 51 GMC is coming right along with my painter doing a spectacular job on each piece until yesterday. When I took the doors over to him he just couldn't quit staring at them. He finally asked if the truck had been painted before, which the answer is "no" because I got the truck from the original owner and I knew the answer. When I asked why, he said that the edge of the doors(on the inside) should be the same color as the outside of the truck. Since mine was all the same he said that was how the body shops would repaint one because it's a lot quicker and easier. I was wondering if the factory might have started this on later models, any ideas?