Thanks everyone. The boat is old (mixmatch of 81 and 89 parts), not race condition and just a fun weekend boat. Hoping to get out on the water for as cheap as possible for now.
"Toss it and buy Harken" if... you have a money tree in the back yard and it is in full bloom right now. I rebuilt my "old Seaways" with about $10 dollars worth of stainless nuts and bolts and they work great. There are numerous places out there to find the process, including a search of this forum, to do the job. Unless, of course, you can throw money at this hobby and feel good about it, or you are trying to win the nationals, or just look really cool. Maybe I have been sailing on a small budget for too long. Just irks to have the first solution as "junk it and buy new". Hope I don't offend anyone. Especially those great people who support this site and sell sailing hardware. No offense intended. really..
When I converted my old seaway from double-stack to single stack lower block, I had to drill out the rivets and replace with stainless steel bolts. If you do this conversion, you can put in a replacement pin at the same time. You even have a spare pin from the double block that sits on top of this block when converting to single stack.viewtopic.php?p=38943&highlight=
Thank you very much. I've never seen that before. I will take a look and try this first. Should help since I was using the 2 upper blocks (old style with the 2 boom tangs) on a new boom with just 1 tang.Made for some interesting twists and tangles. Since I have 2 broken sets of Seaways I assume I can make something good out of this.