Well I went out and fiddled with it some more and it loosened up and started coming up big piston first again. I think tomorrow I will try to raise the truck with it and see if it holds.
Truth be told the screw popped out and a lot of oil leaked so I added more oil and that seems to have made it happy. I may go ahead and drain it and refill it if I can find out how much exactly it should have. Now that I am writing this I realize it was out in the weather for a long while and may have a bunch of water in it. That oil leaking out looked watery.