Interesting,

When I did the vent hose / tank grommet job on my 90 Carat, I replaced the
fuel guage sending unit grommet.  With the float and arm removed, you can
easily see a large wall in the tank so that the float sits in its own
channel, with just a small hole to the rest of the tank.  My guage doesn't
fluctuate around corners, just on inclines, because the baffle wall is
longways in the direction of travel.  It looked like the OEM tank to me.

Michael

> I have looked into a bunch of Vanagon gas tanks and I never remember
seeing
> any baffles either.  When my '91 Carat Vanagon (which has the original VW
> tank) goes around corners, especially when the gas is low, I get much
> fluctuation of the gas gauge.