I will send some pics tonight that show the model #. It has not been worked, I run it on my 2007 200 Optimax. I dont think they are a fat shaft, its just a regular shaft. The prop has been ran on the boat this summer and thats all. Its in great shape I just need to go up a little in pitch because I get into the limiter with this prop especially when the water temps cool back down a little.
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