Confirmation of what? The 20mm size is correct for all 911 air cooled.

Yes, that is what I was looking for.

Thanks for the help
Scott

I am thinking of using a vw bug hub adapter, but im not exactly sure what years use the 20mm 40 spline on the bugs. I think its the 60's that use this size, and the later years use 21mm 40 spline.

The reason for this is that they make aftermarket short hubs for beetles, and I would like to use a shorter hub for with the quick release and a somewhat deep wheel, I wont have the steering wheel too close.

I will have to make an adapter plate that makes the hub fit to the 6 hole quick release, but that should be fairly easy