Ho,
I'm a bit surprised no one posted here yet.
So you don't feel neglected, can you be alittle more specific, I looked online at a 1982 & the Chainplates look similar to my C30. I've been in the "shiz" quite often with no failures.
Chainplates are all about support & attachment both above & below deck. Then there is the integrity of the chainplate, rigging cable & connector ends. I can say this, if this is original rigging, I would change to new rigging & only use 316 SS, not 304 SS.
Yours may be 32+ years old. That's a long time man. Strand cable & swage fittings need to be checked for any discoloration, rust and/or stretch. Personally, swage fittings never gave me a warm fuzzy feelin' to begin with.
CR