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Old 01-18-2010 | 02:59 PM
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w8ye
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From: Shelby, OH
Default RE: Prop nut size for larger engines
I would think the 3/8" would be more like it.

I know the 40's and 45's mostly have 5/16" -24 but that mighty small for a 60.

A lot of this depends on what the nose on the crankshaft has? That would be my judge as to size.
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