Thanks Bart. After cleaning the joint out and having a good look at I thought the same thing. Looks like it's pressed together somehow because I couldn't find any way to take it apart. With all the water that was in the joint I think it's shot now. With all of the grease out the joint is still sticky and doesn't move as well as it should.
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong, it usually turns out to be impossible to get at or repair."
-Douglas Adams, Mostly Harmless