J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Replacing Propeller Shaft 7/8 vs 1 Inch

David - I think David Bows used the same brand I have - PYI Inc. Dripless Shaft Seal - look at this link: http://www.pyiinc.com/
You can get the part number for your application by entering the shaft diameter and stern tube outside diameter. Once I got the part number, I found the best price from Go2Marine.com - you may want to do an updated price search.