Guys, been having a shaking in my car at 55 and 80. Also, weird rhythmic groan-like noise from the front left at lower speeds that increase with tire speed. I jacked the car up today and tested the tires for play. The right side felt tight. The left side was tight 3 & 9, but had a noticeable 12 & 6 movement.

I don't know much about front end stuff, but would that be a wheel bearing thing? I had them repacked when my front brakes were done 5 or 10k miles ago. I'm thinking otherwise the balljoint? Where are they? Dumb question, but I can't seem to locate them.