2002 Lexus ES300 shaking when accerating
 

My 02 lexus ES300 with 45k is shaking when accelerating. It happens mostly above 40mph. The shaking is getting worse. I recently had a tire rotation, and 4 wheel alignment which did not fix the issue. I am taking the car next week for a second opinion. Any ideas on why this is happening? I just want to have some facts before I take my car to another technician. thanks

Could be a lot of things: Tie-Rods, CV Joint, Wheel Bearings, basically most anything in the front end. Best bet is to get it on the lift and see if there is play in the tires. Left/Right play is usually a Tie Rod End and Play up and down can be a couple of things.