I have a 98 Toyota Sienna. I experience a slight shimmy at 65+ MPH. It seems to come from the front end. In addition, it seems to escalate after about 2 hours of driving. when that happens, it gets louder. To stop this, I slow down and apply the brakes. To my surprise, I feel vibration in the brakes. Under all other circumstances, the brakes are smooth. See also my list of recent repairs.
I have done the following work within the last month to take care of the shimmy, to no avail. These are listed in the order completed:
* New tires, balanced
* New lower front control arms.
* New front rotors and pads
* New rear shocks
* Rotated tires front to back
What else could it be? I am really frustrated...just looking for a nice smooth drive on the highway.