Duraforce oil seals

viperv10

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Oct 7, 2016
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Hi there Lawn Boy guys. I have a question about the crank seals on a Duraforce engine. Is the bottom oil seal different than the top seal? I was looking on the Lawn Boy Master parts viewer and it shows no. 4, part no 611396 for the top seal with a (2) behind it like it would take 2 of these. I know it is the same seal that works on F and V series engines. But it also shows no. 9, part no.94-5764 for a bottom seal. I wasn't sure if I needed this seal or if was for something else a little higher up on the crank shaft. Can anyone with some experience help me out with this?
Thanks a lot.
 
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