930 cv shafts in a n/a car

[edbaus]

I am looking to use the turbo cv shafts in an early car (76 911). The carrera shafts are the same as the turbo shafts as I understand it.

I have the drive flanges. The question is:

What stub axles do I need.

Carrera or early (78 79) turbo. The 80's turbos have a longer shaft because of the difference in the hub bearing placement.

Also, What is the best source for the cv shafts.

Ed