So, I've never messed with AC work much. Can I replace just the clutch, or does the whole compressor have to be replaced? I bought the AC parts from a wrecked 60K mile car to reinstall AC on my 89, but never got around to it. Therefore, I have a goodcompressor with working clutch sitting in my garage. Can I just swap the AC clutch? I see a bolt to undo. Do I need a pulley remover or will it just come right off? Thanks.