I have a shop in Tacoma WA and we have been having a real problem with the
discs from Sachs that were manufactured in Canada. We have warranteed 5 or
6 clutch jobs in the last 2 years because of a real bad chatter that shows up after 30
to 120 days and occurs only when hot. One Vanagon that had these symptoms had
a Canadian disc that had been installed at the dealer. Note that not all
Canadian clutches we have installed chatter but every one that chattered like
this was manufactured in Canada. We have not had any problem with the German
discs or with Luk brand discs. I have been able to get Sachs to admit there is a
problem but so far they have only replaced one disc. We are, I hope, just a few days
away from receiving something from Sachs for our warranty claims. Our WD
returned over 350 new Canadian discs to Sachs.
   Since we discovered the problem, we have been using clutch kits from Luk without
any problems.

Regards,

Brian

86 Syncro
87 Syncro
85 5000 Turbo