Never seen one that thin
Jerry,I also have a 321 with a Flex-O-Fold prop (2-blade), so the prop mount zinc isn't an option. I had a spacer made that goes between the gearbox flange and the shaft flange that essentially extends the shaft just enough to put a collar zinc on the shaft. The only collar zinc I have been able to find is the Canada Metal brand, but its about 1 3/8" wide. Did you actually get a 1/2" wide zinc at some point? I would like to get my hands on one also as I'd like to remove the spacer since it effectively moves the prop further from the cutlass bearing, which I'm not sure is a good thing! Please let me know if you can find one of these thin zincs, and where at.Thanks,Tims/v ReverieTKP62@aol.com