1- The paper gasket installed dry
2- The paper gasket coated with grease
3- The Paper gasket installed with permatex 2
4- The paper gasket installed with ultra black or the like
5- No paper gasket - ultra black only.
• Other.....
With the ball free to move in the coupling I'm sure that a perfect seal is impossible. I know I'm dreaming but I actually hope to greatly reduce leakage from the engine and drive train
