Well the original pin in the photo had to be air arced out, new pin and bushings for cylinder, about 700 bucks at the bobcat dealer, i spent 3 days trying to hammer, drill, heat, press and cuss at the pin. I bought machine from landscaper that didn't own a grease gun. went thru the whole machine took out all the zerks, stem cleaned everything, put new fitting in and greased her up. She gets grease every morning. Even had to change hydraulic fluid and filters three times, previous owner ran without hydraulic cap for a long time apparently. I did find two things very helpful when trying to clear fittings that I learned here and the really worked. #1 some times removing the grease zerk and treading the grease gun into fitting did the trick, using whatever adapters necessary, most of the bc ones were 1/8" pipe thread. #2 bought a cheap porta power at harbor frieght, after trying every trick listed here, i hooked it up, pumped it up as high as i could and rotated joint about 5 times, finally a bunch of rusty fluid came out of joint, then it took grease.