Which axles to use with al 944 arms?

[boygenius]

I use www.pelicanparts.com as a cross referance manual.

They are showing that these axle assemblies are the same.
Manual transmission only.
1. 1985 1/2 - 1987 (944 and 944S)
2. 1987-1988 (924s)
3. 1986 (944 turbo)

1987 and later turbo axles use a differant spline pattern than VW so you would have to use only porsche cv's. Hope this helps. If you need any more specific measurements let me know.