A body door lock ferrules

I'm using the metal ones available online everywhere that has the felt center. Mine were long gone and I wanted something that didn't rattle. Since I was not worried about originality, they work great. You just have to get you hand in the door to bend the tabs to hold it in place tight. I also used a set of chrome locks. They are a little longer than the originals, but once they are tightened all the way down, they look pretty good. I say go for the metal ones!