I'm running a 86 caprice, 60000miles. Prime inside &out. I have one issue with what seems to be my AC compressor, I'm getting vibrations on and off (just the compressor itself) whenever I kick on the AC, accelerating or not. I've considered replacing it, recharge/ converting it to r134 or someone suggested it could be the clutch. Figured I would refer to caprice forum. Anyone familiar with this issue. Or any suggestions!? Much appreciated!