pre alpha & alpha interchangability

[big ken]

will a pre alpha lower unit with preload pin mate up to an alpha one gen 1 upper? and or will a pre alpha [mc1] upper mate up with a alpha one gen1 lower without preload pin? thanks

 

[Bondo]

Re: pre alpha & alpha interchangability

Ayuh,...

I know they are interchangable, Drive for Drive.....

I'm not so sure about Mixing,+ Matching the uppers,+ lowers....