GTA early ZF positraction units

[Curtis]

I have seen several early ZF posis sell on ebay in the last 2 years, but never with the special 15 spline axles needed to actually install them. What are these guys running for axles? Has someone had them remade? Are they available?

I run these rare posis in my Giulietta race car, but have only 3 axle shafts (one spare) so worry about breaking them although so far it has not been a problem.

Have thought about making up the parts to convert my posis to the more common fine (28) spline or alternatively to have new 15 spline axles made.

Just don't want to go to all that bother if somebody already has.

thanks for any help or comments,