Thank you both for your answers. This explains a lot and confirms my research findings and experience with the parts, related to the turn signal switches in our 76 Blazer and 77 Aspen.
It's funny how there's no information on the appropriate parts to access in several online shops... They all claim to be THE absolute experts par excellence.
For me, as a German born in 1992, it was really difficult to get the correct information.
On top of that, Aspens and Volarés from 76-79 (even later models until LeBarons from ~1983+) are pretty darn rare in Germany and no one really knows about detailed issues like this.
(This may also be due to the fact that I am clumsy and destroy components that normally do not break... lol)
Best
Matze