I've noticed the appearance of a rough grinding noise at idle which I had thought was from the serpentine belt and pulleys, however after a diagnosis, the noise was identified to be emanating from the alternator. Almost sounds like a bunch of horny frogs on a rainy night.Given the car has only run 60k km, this is quite surprising as alternators rarely fail so soon. However what I'd like to know is if anyone here has reconditioned their alternator? I suspect it's the bearings that are gone and rather than replace the whole unit, which most shops would do, I am keen to recon the unit. I suspect outright replacement will be very costly (any ideas?) while a recon job should be more reasonable.Appreciate any suggestions or advice from you Sifus, thanks in advance.