I'm pretty sure my son's 5 cylinder Audi had one of those adjusters.

DM&FS

At 11:00 PM 3/21/2009, BenT . wrote:
>�Some PO or mechanic of my "new" beast welded a small rack on the slot
>in the alternator adjusting strap.  It mates with a hex-headed pinion
>that rotates on the clamping bolt.�
>
>I had one of these made for me only to discover 
>that VW put them on the late-80's to 90's 
>models. Ordered my next set from my local VW dealer.
>
>BenT
>
>
>Sent via BenTberry by BenTNT