I wanted to put zirc fittings on them for serviceability in the future, so I practiced on my old balljoint. It totally worked, I pumped some grease in there and it made my old balljoint feel amazing! I even kept my old balljoints because of this.
Not sure what everyone thinks about this, but I think before someone shells out money and time to replace these, maybe try installing a zirc fitting first, and pumping some grease in there. And I know we can get new balljoint covers from Vic’s or Midwest Bayless. Just an idea, real cheap, buy zirc fittings from your local auto parts store, then slowly drill and tap according to the size zirc you are using. DO NOT INSTALL THE ZIRC FITTING LIKE I DID IN THE PICTURE. In this location the fitting will interfere with the axle