Looks like I\'ll be doing a water pump- how hard is it? well, unfortunately, was driving the old girl today... parked it.. noticed coolant leaking. Looked closer, and it was comming from the water pump area. I'll have to check closer if it was a split hose or something.... How hard is it to change the water pump? Should I just take this opportunity to upgrade to the 97+ water pumps? I have serpentine setup already.