broken transmission stud
 

I have a 78 930 and it is all taken apart. I noticed that the transmission stud (the one that has the allen head on top of the starter) broke in half. I assume the extraction is the same as a head stud (although I don't want to drill it out, just heat and a pipe wrench), but I cant find anyone that has a replacement. Any ideas?

To make it easier, its the same size as the starter stud on a G50. 10x140mm part number
999.062.225.02. Theyre not like head studs, they remove easily and can be drilled if below surface because they are 8.8 steel.
Bruce

Thanks!!! I now have tonight planned!!!