OK so i can pickup a good used spare3 blade 13X13 LH Nibral prop for $50 shipped! I have a stainless now but just in case wanted the spare. Anyway i want to make sure I'm checking this right. The smooth portion of the shaft measures 1", is that where you measure? I ask as the threaded portion is less than 1". It's off a MasterCraft but to the best of my knowledge all inboard 1" props are the same as far as bore and hub length, is that correct?
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