Output shaft bent on a 904

I had violent shaking in my car. I suspected it was the driveshaft, but I replaced the driveshaft and it returned. Sure enough, the output shaft is bent.

I have looked around for a new one, but I can only find one from a Jeep 1960 and up:

http://www.ebay.com/itm/CHRYSLER-A9...Parts_Accessories&hash=item27cb2b74a5&vxp=mtr

Does anyone know if this is the same part? Anyone know where i might be able to find a part like this? That, or a cheap new 904 for my 66 valiant?

Any help on the subject is appreciated.