Vintage swivel wheel trailers are really nice and cute behind a vintage
bug or bus, 
But for serious road miles on the potholed interstates @ 65+mph, I would
go with a more modern road contact wheel then the vintage ones (I also
own a tagalong swivel trailer). 

There's a MFG with NEW and HD decks that can be modified and adjusted to
be tasteful gear carriers. http://www.cruiserlift.com/swivelwheel.html
Not just cycle or scooter carriers like they promote.  But think of
vintage swivel with a more modern running gear. Drawback is the modern
price of the componenets, they want to earn some of your $$ for their
design and such.. 

Best.. 
Dan 
-------------------------------------------------------

Date:    Wed, 2 Apr 2008 12:50:21 -0700
From:    Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Subject: 

Ball hitches could work.
Hadn't considered that.=20
They're not 'bearings' in the sense that a real ball bearing or =
something
would be, but they are designed for some up-down pivoting, so they could
work, and that's how you could uncouple it too - good thinking !

Those big side tents, I think they'd be best for serious long term =
camping,
like weeks at a time, and not night-to-night normal car camping. =20
 Quick deployment and take-down are one of the westy's strong suites.
And they don't have much storage space in them at all I don't think.
'socks in the drawer' type storage is what I call it.
I'm kinda gear and equipment intensive, so 'room for stuff' is =
important.=20
If I saw a good deal on a used pivoting single wheel, I'm sure I'd grab
=
it.=20
Shoot, such a system has the potential to be simple, rugged, basic, very
useful, unobtrusive, light, etc.   - all the things you'd want in a good
design. Now I want to make one ! =20