Do you reccommend I replace the whole compressor/clutch assembly or just the clutch. The compressor has atleast 120,000 miles on it. How susceptible is my compressor to the "black death" caused by the teflon breaking down and contaminating the entire system? Am I over reacting...should I just replace the clutch and call it fixed or shall I go ahead and replace the compressor and drier as a preventive measure?