www.jrhitches.com is the site for Roadmaster hitches as suggested by Dennis
Haynes.

You can also check with U-Haul or other local hitch installer to check out
their prices.  I bought a hitch from U-Haul about 5 years ago and have used
it dozens of times, towing Vanagons as far as 2000 miles.

Just be sure that the brackets that attach to your Vanagon are securely
bolted to the box frame member that lurks behind the front bumper (which
must be removed first).  Additionally, heed Dennis' cautions about safety.
Remember that the main problem with towing is lack of stopping power, not
lack of horsepower.

If your tow vehicle is smaller than a full size pickup, be very careful
about the sway that will occur as your towed Vanagon tries to steer itself
over all of the road irregularities.  (The tail tries to wag the dog.)  This
problem dramatically increases with higher speeds.  However, if you are
prudent, you can tow a Vanagon behind another Vanagon, although max cruising
speeds should be in the 45-55 mph range.

Good luck.

Budd Premack
86 Syncro, 88 Wolfsburg
Land of Sky-Blue (Frozen) Waters
Minneapolis, MN