4 speeed tranny

[81FATBOY]

Hey ya'll.
Im new to this web sight and wanted to know if any of you has a fix for the oil leak on the 4 speed tranny.
I have a 1981 Sturgis fxb and i replace the seal and its good for about 6 months and here comes the leak again:sd
Is there a miricle fix for this?
Thanks
Buy a five speed is not an option,Shovelhead forever.........

Thanks

 

[glider]

Welcome to the forum and thanks for your contributions with advice too.

Have you checked the primary cover for straightness? I'll bet it's warped. Know anyone with a machine shop that could deck it for you?