Thanks, it is a locking strip, should be for the 64-65 cars, 66 is different....not sure if this is for the front or rear window, might even do both. Does the 64-66 Dart have locking strip on the rear window or just the front? The Valiant's and Cuda's have them front and rear. I really hope Ulf can use this, it would be another piece of the puzzle to help him complete his car :glasses7: