I've been off list for a few months, but am starting to follow the digest
and may jump in when I have something to contribute, and this is one area I
have some experience with.

I had front and rear Addco sway bars on my '68 Westy that I converted to a
high top, and boy, they really made a difference.  The effect is to
dramatically reduce sway at normal cornering speeds, I can't speak for any
high speed problems because.... well you can figure out why.

I'd love to install a set on my '84 Westy.  Addco
(http://www.addco.net/products/volkswagen.shtml) sells both front and rear,
and has several distributors here in the west, including Les Schwab Tires.
They run around $200 each and use urethane bushings all around.  If I do
I'll be sure to share my experiences.

Stuart MacMillan

'84 Westy w/2.1 engine
A mess of MGBs too