Part number for the X Factor diff pinions
 

I need help to find out the part number for the X Factor diff pinions, or if by some chance anyone has a pair of them, I would gladly buy them. I have two brand new X Factor axles that are complete except for the diff pinions and I can’t find the part number or a source for where I could buy them. If anyone knows if there are other diff pinions that work in these diffs that would be great too. I’d really appreciate any help with this. Thanks very much!