I was thinking too about drill/tap the shaft ends, but knew I would break drill/tap, so thanks to the guys here, I found a post that suggested grinding 1/8 of the end of the shaft and fitting a 3/4 welsh (freeze) plug .
I ground the ends of the pin holes flat and put some booker bar (all thread) bolted thru with some gasket /washers and sealer.
Running synthetic oil and zero drips so far.
