Are Rear View Mirrors the Same for Convertible vs Coupe/Fastback on a 1968 Barracuda?

Well the mirror end will not go through the hole :(
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But it got me to thinking....

I could reverse engineer the shaft but shorter.

And either reuse the ball end buy having a setscrew in the shaft to capture it in a hole or RE the ball end and have threads.

And print it in Stainless steel

My guess is the ball end is pressed into the cast end ( or the cast part is cast around the ball end )

Pm me if you are anyone else is interested