Isn't it installed on the back of the alternator. That's what I thought. But, maybe it doesn't come as part of a new assembly, and you have to buy it extra.
Oh I know, it's a good thread. I'm in the market for "a good book" ;-)
Thanks guys, thats what I thought aswell, but while running a search on the topic, ran into some stuff about it and was unclear weather the guy was talking about the rebuild of the existing alternator or replacement of associated equiptment.