So i have been searching for a non flex boat prop shaft. The only set up i found was from Dumas. Grimracer adviced me to use a straight shaft with no ujoint and just a coupler. So i searched and came up empty handed. I have ordered the Dumas hardware twice. Once when I first built the boat. And then probably 10 years ago. Both times they were bent. Plus it was just a shaft in a tube no bearings. You guys know any body that has these. Or am I stuck making my own. I found the persion ground stainless rod. Of course k&s has the brass tube. Thanks again guys.