a833 with 904 yoke??

Hey,

I have this set up in my 66 Cuda, the A833 with the 904 yoke. What would be the part number for a new yoke if mine has some pitting on it and it is causing the rear seal to leak? How many splines doe it have and what are the dimensions? I do not have it apart right now so was asking.

Thaks

Dave