My body shop will not install these trim pieces with the 3M sticky tape. They said they have tried this before, but with Detroit winters, they will fall off. If the two mounting pins were not ground off, they could have been correctly fastened to the car. Without the two pins, they are useless.
WCCC response: The original mounting pins were weak and prone to failure. We feel that the double-sided tape (or the super strong Window Weld urethane we mention in the description) is an improvement over the original design.