That is the issue with every single repop marker I have ever seen. When we redid our 68 Camaro we bought ALL new markers for the entire car and when we went to install them, almost every single one of them either snapped off or stripped out. That was the one nice thing with our bird, it had all it's original markers from the day we bought up until she was just parted out. I left all the markers on the original panels when they were sold. I guess that's why NOS/OEM stuff is worth the expense...