Mainshaft or crankshaft

64 Harley-Davidson FL Duo Glide discussion forum:


Mainshaft or crankshaft

Mainshaft or crankshaft 
Rick said 2026-05-18 18:26 
 
what size is the shaft coming out of the engine and what size nut does it take? Were they always the same? My motor was changed to a belt drive primary instead of a chain drive. 
 
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