Landing gear greasy

I'm getting a little concernicous about my driver's side landing gear. It is covered in grease, but I think it may be leaked hydraulic fluid. It has been this way since we bought it, but looking at it now gives me a creeping suspicion it will be a difficult or expensive fix. The housing for this jack is behind our genny and in front of our propane. Thoughts?

(Driver's Side)

(Passenger side)


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