Well, I found the maker of my prop shaft lock.
SeaAir,Inc / Sarns Machine
Raymond, ME
The “PropLock 2” was made in 1982 and as best as I can tell, the company is long gone.
Today I took the pads to a local machine shop and they will recreate them for about $100.That’s better the having to buy a new locking device.
Thanks everyone for you input. One more project under control.
Ron
S/V Patricia Bess