Zderf,
I looked at you pics of the broken shaft and my blood ran cold. I recently had my rear end out to replace seals etc. and in the process noticed that my left axle (the short one) had a slight twist in the spline. Not the whole axle, just the spline, about 3/32". The other one was straight. I put the thing back together figuring it was NBD. After looking at your pics. I think I will take it real easy until I can get a new axle.
My rear end is a "Torque lock" which works great, but I will defer to DV. Great to know about NWD, they sound like terriffic people.
Where did you get the axles and what did they cost you? Mine are 28 tooth.
Bish