The lower lift link gasket appears to be leaking on my 2N. It looks like to replace the gasket, part number 523 in the second image below, just remove the link arm, the link pin (part number 563), the nut on the stud, and part number 562. Is this correct? I know the pin also has a cotter pin on it, so that would have to be removed to removed along with the nut that holds the pin on.