Cal - On mine I can rotate the damper end of the pivot arm down far enough for the washer to clear. Did you try dropping the belt off a pulley somewhere to see if that will gain you a little more movement?
Short of that you have to remove the fan shroud, fan (or the fan clutch) in order to remove the 17mm hex pivot pin holding the pivot arm. You are supposed to pull the radiator first. I did it by unclipping the top supports holding the rad and removing the metal crossmember which supports the top of the radiator and pulling everything forward 1".
It wasnt very fun. If you do it with the rad in place, do yourself a favor and put a piece of cardboard up against the rad after you get the shroud out. Your knuckles will thank you for it....