Shimmy problem

["Richard R. Coker" <RichardCoker@xxxxxxxxxxxxx>]

I have been having a problem with my car that is driving me crazy.  (1996 328iS, running stock 16" wheels with V rated Yoko's)  I never had the problem
until my car got a front flat--simple nail, I had the flat fixed and the tires balanced.  After this I discovered even though I told them not too the
company had rotated them as well.  Since it is a pain to go back to the shop I unrotated them myself.  The car still shimmied at certain speeds and got
them to re-balance them.  The car was ok for a couple of weeks and then it came back-the shimmy.  I then had the tires balanced again and again about a
week later the car shimmies at certain speeds.  (Noticeable at about 40 and 90) I have even kept my tire pressure lower than normal (At BMW specs in lieu
of tire maker specs--like 32 instead of 41psi)  I am getting ready to take her in again for tire balance.  Any ideas on what I can look for that is
causing this??  This is getting to be a real headache and while with the local road conditions I don't expect a balance to last forever this is getting
ridiculous.  Any one with ideas would be greatly appreciated!  Hurry before I go look at the Ford Lightning as a replacement, sure the gas mileage is bad
but with the money I save in tire balancing I might be breaking even.  Thanks for the help.

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