79 trail fire 440

[Kimbo]

Hello
I am working on a motor for my 440 and am looking for the o rings that go onto the crank. Would anyone know of the size and type these o rings need to be and were I might get them from. I have checked with NAPA, O Riley's, several transmission shops and small engine shops but have had no luck. Any help getting the size for the o rings or were to get them would be much appreciated as winter is coming soon and I would like to ride my Deere.

[Matt]

I stock and sell them: https://newbreedparts.com/products/kawa ... dfb2&_ss=r