I'm going to tag on to this thread as I have a very similar issue. I have a 51 truck, vin says so and everything else does as well, The strikers are 51 and the door latches are push button. They work and close the doors. Nothing has been modified on the door closure parts that I can see. I'm wondering if anyone else has seen this on a truck made in April 51. I know 51 doors are odd but I didn't think they did a vent with turn downs and a vent with push buttons
