It is failry common for the box itself to go bad. Get the European cable
that is long enough to go tot he speedo in one piece. AFAIK they are
available for both the Syncro and 3 WD. The box is not readily repairable.
You may be able to get some lubricant in there to quiet it down.

Dennis

>From: vanagonvw <ac.vanagon@GMAIL.COM>
>Reply-To: vanagonvw <ac.vanagon@GMAIL.COM>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Re: OXS box noise
>Date: Fri, 19 Oct 2007 08:19:48 -0600
>
>Chris Snyder wrote:
>>I do not know how to describe the sound any better then a dry bearing
>>noise.
>>It only does it some times then it goes away and I won't hear it for days
>>or
>>weeks. It's not weather related nor heat related.
>>
>>
>Just unhook  the cable into the box. That will eliminate the speedo and
>the gears in the box from the loop. If the noise goes away, hook it back
>up, and disconnect the output. Then you will know if you are in the
>right place, and which of the two, if either, is causing it.
>
>Keep it simple :-)
>
>John