Hello everyone. I just joined. I have been researching the web for answers to my vibration problem in my 2010 ES 350. I had a 2008 ES and it road great! Traded into a new 2010. After putting a few thousand mile on it, I started noticing a vibration. It was not bad on the highway, but on secondary roads the ride went to hell. I blamed on the junky Bridgestone tires that came on the car and figured the problem would go away when I put new tires on. Just put on a set of new Michelin tires and road forced balanced them. Ride is better, but still getting a jittery ride between 40 to 60 mph. I am now starting to think the problem is in the suspension (springs & struts). Does anyone have any ideas on this?