Mitsubishi MTE2000D, Dig It 258 Mini Ex, Deere Z930A ZTR
Looks like a couple of wrenches and possibly a ball joint separator ("pickle fork"- $10 at Harbor freight). Take the nuts off the joints on each end of the cylinder, pop the joint out and disconnect the hydraulic lines. Looks like individual cylinder parts and seals are available. Parts diagram is available here New Holland Parts - Best diagrams, pricing and service!