Yoshi,

I am running MB steel wheels on my Syncro and have been for several
years.  I got mine from Tire Rack before they quit selling them to
Vanagon owners and then later discontinued them altogether.

They are ET37.  IIRC lots of people are running ET37's, both MB and VW
from Passats, without spacers and without problems.

I would put spacers on wheels like ET45, but haven't on the ET37.  Some
might disagree regarding the 37's.

The ET31 would be better, closer to stock, etc.   Where did you get the
ET31 C class MB steel wheels?

Sam

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Sam Walters

Baltimore, MD