> you could add one of the vss units that we use in the subaru conversion for
> vanagons. smallcar is selling one at www.smallcar.com or build your own.

Allow me to second the recommendation of the Small Car VSS unit:
<http://www.smallcar.com/index.php?act=viewProd&productId=78>
When I installed my aftermarket electronic cruise control unit, I
struggled with all manner of home-made and generic aftermarket
solutions, including paying $30 for the "kit" sold by the cruise
control manufacturer, which amounted to a pickup coil, a metal
mounting strap, four grooved magnets, and a LOOONG cable tie (to hold
the magnets on the transmission CV joint). None of them worked worth a
darn. The Small Car unit went right on and worked perfectly, and it's
only $50. It should be fine for any generic speedometer application.

> you
> will need to know how many pulses per revolution your speedo wants though,
> maybe its not the same.

Aftermarket electronic speedos are generally fully programmable. Once
it's in programming mode, you either enter pulses per mile manually,
or you press a button, drive exactly one measured mile, then press it
again. Now it knows EXACTLY how many pulses per mile. You can even
recalibrate if you change tire diameters. Very handy. I have one from
my brother's wrecked 280Z racer. I was going to put it in my Vanagon,
but I think I'd feel silly with a speedo that went up to 160 MPH...

--
John Bange
'90 Vanagon - "Lastwagen"
'90 Vanagon GL - "Wiesel"