904 leaks on park cable fix

Yes the Park cables will leak through the crimp and O-ring in the housing. I have a 63 Belvedere PB 727 that would leak 5qts in 3 days. Converter Drain back was the issue, solved that by using a Sonex pressure regulator valve. It addresses that issue among others. Think they make one for the 904. Got to pull the V-body though. I still have a little drip from the cable but not a flood of ATF. Looking for a cable but Baby steps as more $ comes in.