1965 Dodge Dart Charger

I checked out all my Darts and there seems to be two different styles of door locks! The older style has a concave center area will the newer Darts has kind of a flat center area. My convertible has concave door locks while my hardtop had flat door locks. The red wagon has concave ones while the White and blue wagon has flat center door locks. I will go with the flat center door locks.

Does anyone know when they changes style?

The instrument panel is coming along well. Now the only thing left is to add the fabrics that cover the speaker and add the speaker then it's all done.

On the backside of the instrument cluster there should be a condensor or a voltage limiter. Is this the correct style for 65 Dart? I found this voltage this voltage limiter on Ebay. The partnumber is correct but I can't figure out how it should mount to the housing!!