Hi, Andy,
If the "monkey nutz" are bad, there's a chance the drive cup (#7 in Duck's picture) also is bad with the drive vanes broken. That's how it was when I replaced the monkey nutz on my (sold almost 2 years ago) '95 K75RT. The monkey nutz are the same part number (I think), but the drive cup is different for the 460 watt alternator vs the 700 watt alternator.