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

toolmanmike said
You slant 6 folks are damn lucky that Ma Mopar put a strong crank in those slant 6's because she sure short changed you on the main bearings. Unbelievable they stand up to any abuse.

Same size mains as a 440,..440÷5=88c.i./main,...225÷4=56.25c.i./main, I think we're good..