I think my rebuilt Bosch 35 amp alternator may be on the way out. Yesterday while doing some engine tuning on my Megasquirt, I started getting some howling noises from the front of the car. Not steady; but, definitely sounded like a bearing going bad. Does anybody have a suggestion for an easy drop in replacement if I need a fix? I don't need anything spectacular size wise. I have a dash voltmeter so I don't really need the charge indicator light. An internally regulated one wire alternator would be OK.