93 Grand Caravan 3.3 shimmy

I've got a shimmy when I accelerate between 10-35 mph. At speeds higher
than that or on the highway, it's gone and the car rides smooth. The tires
look like they are wearing evenly, the front end is good, shocks, springs,
tie rod ends and ball joints. Front end alignment is good and the tires are
a year old.

The shimmy was there, but this weekend I switched the two front tires and
now it appears to be more severe. I know that points to the tires and I'm
having them checked tomorrow. I was reading the trouble shooting section in
the Haynes manual and it states one cause of a shimmy, shake or vibration
as: loose, worn or out-of-adjustment rear wheel bearings. I was wondering
if anyone has had this type of problem and if it could be bad rear wheel
bearings. That would seem to explain why there's a shimmy and the front end
is good. But it could also be something I've overlooked.

Thanks for any advice you can offer,
Nick

 

A worn inner CV joint will cause a shimmy at certain speeds and under load
(uphill or acceleration).

 

So will tires, corrosion between hub and rotors and wheels, improper
torqueing too. Along with perhaps a couple other isssues. The older body
style seems to be much more suceptible to this condition too.
Larry