Seriously consider chhanging all of the ball joints, tie rod ends, and check the sway bar links. Just because you have done a shake down doesn't mean that the joints aren't worn out. Are there any noises? I really doubt it is the tires because it sounds like people have had the same problem w/ different tire brands. Do the shimmy/vibrations get worse when accelerating or under braking? Is the shimmy still there while coasting? Has anyone checked your halfshafts for free play? You can still balance a bent wheel. I just really doubt it is the tires. That's all.

Ok well...new control arms (front), bushings and ball joints didn't fix the issue. Now the tire place replaced all 4 tires and of course re-balanced and since I had the suspension work done, an alignment as well.

It's worse. MUCH worse. Now the entire car shakes starting at 25-30mph. A very pronounced shake.

Back to the drawing board as frustration mounts. I guess the next step is checking the tie rods and sway bars as mentioned above.

heuer, well you were right. It wasn't the tires. The vibration does get worse at high speed braking. Once in a while it's worse upon acceleration, but not always. It seems that uphill acceleration makes it worse, but again...not consistently.

The shimmy is now much worse and absolutely there while coasting and braking, but I didn't notice it during acceleration last night after I got the new tires and alignment, but that was just 15 minutes of driving.

Let me think about what else it could be. It could be time to bite the bullet and take it to the stealership instead of throwing more parts at it :(

Get under your car when it is parked on level ground an see if you can move your axles b trying to rotate them. That is a good way to check for free play. If there isn't any free play I would then check for a seized caliper or suspension bushings, I would really doubt it's the bushings though.

I am - embarrassingly enough - not the most DIY guy on the planet. I'm not even sure I would be trying to rotate the right things.

I know....I suck. It's part of my overall frustration. If it weren't for you and others on this forum, I would have no idea of the possible issues.

At this point, I refuse to bring it back to those a-holes at the dealership. Due to a few recent experiences...and not wanting to bore you...I hate those f'n guys. I'd much rather bring it to the dope who did the work on the control arms and ball joints. See what he has to say. The problem I had with him is that I bought the parts and told him to do the job. I think he took that WAY TOO LITERALLY and just did what I asked without a concern for anything else.

I just received a bill from the hospital about 'a thing' I had to deal with over the summer that my insurance didn't cover. I owe $2,100. I'm not looking for sympathy, but trying to express how I want to avoid the dealership and may have to suck up this issue - which puts me in a bad mood upon every commute home - for a little while, if the final result is another big bill.

I still love the X and my choice to buy one. I just need to figure this out and get past it.

Check those calipers...I remember reading a thread that it happened to one member here. Your rotors could be wraped?

Im going with seized calipers too.

Thanks guys, I'm going to have that checked.

So, the issue has been fixed 100%, so I thought I'd report what it ended up being.

$10 hub rings. :shakehead:

If I wasn't so happy that I finally have my X-perience back, I'd be PISSED!

got to be kidding!!! Did you replace the entire hub assembly while you were at it?