I have owned this van since '96 and had the tranny rebuilt at 83,000. It
now has 206,000 on it. About 2 months ago I drove from here in PA to
Connecticut which was mostly highway. On the trip home I noticed a shimmy
which was not bad but noticeable at around 60 MPH. I had the tires checked
and balanced in case I had thrown a wheel weight or had a failing tire. The
tech told me the tires were fine and balance was off by .5 gram on the left
front. On the ride home it seemed exactly the same. It's been 2 months and
it has gotten so bad that it feels like your teeth are going to fall out
when pulling even a small hill at 40 MPH. AT 40 MPH, the shaking is at
it's worst and it's important to note that this shaking only happens when
you are on the gas. The rythm of the shake makes you think you have a tire
where the tread is delaminating if you've ever felt that. But let her coast
and the shaking is gone immediately - at any speed. There is no CV clicking
on corners or straight. Looking under I see no torn boots or anything else
obvious. Help! I'm really at a loss here.