Windshield differences

Come from Germany Gifhorn...( www.mopar-crew-gifhorn.com )

Some People told me that the Difference is The Making Year... He sais Dart 2-door 69-70 Fits and then till 71 is another and it has nothing to do with the doors... but i donĀ“t know it... Thats the Problem.
I will drive to Moparmeet in Datteln end July and i only need this Shield to make the Car ready to Drive...