Is there any way to PERMAMENTLY eliminate rear main oil leaks?

Charrlie_S said
but the OEM factory "rope" seal works well.

I know that is all I'll ever use again. I believe that Mancini has rope seals. The last I got from them WORKED.
Can't say if it's as good as NOS but so far it's good.
Old proverb, It ain't a MOPAR if it don't leak...