As I spelunked around under my van looking at stuff, I noticed my front
sway bar drop link bushings were very sloppy.  I saw some 'polished' area on
the bar itself where the bushings have been 'scooching' back and forth
rather than cleanly transferring the body sway load/motion to the bar..
  I bet this may partially explain how sensitive my van seems to be to
cross-gusts of wind.  Living in the Columbia River Gorge, the windsurfing
capitol of the USA, there are plenty of cross-gusty days.  The way my van
handles these conditions is very distracting.   Actually it is the one thing
I dislike about driving my van..dealing with it's tendency to be pushed
"off-line" very quickly in the gusts.  When it is windy from the side, it is
'white-knuckle time' in my van..You don't dare take a hand off the wheel or
glance away from your intended path for even a few seconds..The van seems to
resume it's intended path naturally, but a strong gust will move you quickly
across the road half way into the oncoming lane, if you neglect to correct
with the steering wheel.  You must drive very attentively in side winds to
avoid death  or unintended agricultural excursions.
  All the other components of the suspension check out, so maybe after I get
the bushings replaced, I will just have a 'normal' Shoebox to deal with in
the side winds..
  Don Hanson