Well, it was cheap on ebay so i said, lets give it a try....
got this cheap set of axles off a 2002-2004 turbo impreza in very good condition and want try them in my old 2nd gen leg 5MT SW.
splines wise, no problem. same
only issue i see is that collapsed total length of the shaft is about 5mm/0.2" longer than my original Leg axles.
Cant believe that mama subbie designed such a tight tolerance for shaft length, so i think it's be safe to try, but of course main worry is if these 0.2" are enough to make something solid hit in full bump (that's when the DOJ is fully into the cup).
these shafts look so much more robust that it'd be great if they'd worked!