AC Compressor went out in my wifes Windstar, can I just replace that or do I have to do the condensor drier?? as well. The clutch on the comprssor is bad acording to a Mechanic friend I trust the compressor is not to pricey(under 200)I think I can do the inst0kll with a friend that has the proper AC refill equipment. Am I missing something big?????