I would change them out just on the rust factor, and get yourself a new set of links.. Like the Jks quicker disconnects and start fresh..
That looks like an early gen Rubicon Express or Rancho link. RE has recently changed their design but I will also recommend getting some JKS links.
Yeah I'll look into them, I thought the pin was a bit sketchy. Just wanted to get someone other than my thoughts on it. Thanks guys.