Well... Already got the primary off, but thanks for the recap.. Seems 5 speeds AND 6 speeds have this 1" diameter seal on the main shaft inside the main drive 5th gear. (After pulley is removed). From what I have read so far, 4 speed sports a different design and is not using a seal in this fashion.
Manual is (edit). Shows how to install a new one with trans on the bench. I guess all the damn gears gotta come out to remove this $2.99 seal. Crap....
The quad seal is an o-ring sits behind spacer which sits behind pulley. Possible leaker when not riding, usually a drip or two...
So. that's my story. thanks for the interesting reading, but I think i'm still unsure. May need to just go the 6 speed. Damn 34 tooth, stock 32, started all this. boo hoo.
Thanks again.