Some things to consider:

Make sure the fill tube actually fits the hole in the tank. Vanagons
have two sizes of hole, depending on model year.

You don't actually need to remove the fill tube from the Vanagaon
body to install the tank, but the way you do it is spin it around as
it comes out the fill-hole in the body.

Put some of the vent hoses on *before* installing the tank. I refer
mainly to the ones that come off the small metal tubes on the top of
the tank. During the process of raising the tank into position, keep
track of those hoses and keep feeding them through the wheel wells so
they'll stay out of the way and won't get crimped.

Bolt the cross-over tube to the Vanagon *before* installing the tank
(I mean, duh.. <g>).

Use Vaseline to help the plugs and filler tube get in the grommets.
Ideally, they should all be a very tight fit. We're talking gasoline
here.

To get to the hoses on the driver's side, you have to have small hands.

HTH. Note that this is hard-won information. :-)

On Oct 24, 2006, at 9:53 AM, Automatic digest processor wrote:

> Date:    Tue, 24 Oct 2006 07:19:02 -0700
> From:    Mike Rouby <mikerouby@YAHOO.COM>
> Subject: Gas tank install driving me nuts!!
>
> OK, got everything I need (tank, grommets/vent hose, sender) and
> dropped the old tank.
>
>  However, I did not remove the gas filler neck.  Seems very
> difficult to remove, but pulled it out enough so the old tank can
> be dropped.
>
>  After fitting the new grommets and sender, I placed the new tank
> in position and with much difficulty I have it mounted in place.
>
>  However, how does one fit the gas filler neck back - it won't budge!!
>
>  Furthermore, the vent hose on the driver's side doesn't seem to be
> accessable from the wheel well, so I can't get to it.  Add to the
> fact it takes a can of WD40 and the power of Hercules to push it
> into the grommet.
>
>  Pls tell me I'm doing something wrong here!!