I am having a hell of a time getting my 83 300SD to track strait, ride smooth, and stay in alignment. I'll begin about a year ago when my parents bought me 4 new toyo proxes for christmas last year. The car vibrated at anything above 60 before the tires, and anythign above 70 once i had the new tires on. At that point i brought the car back and had them re-ballence the tires, with no change in the vibration. Over the summer, I then replaced the tie rods, drag link, ball joints, and steering dampner, and had the car alligned. At the place where the car was being alligned, they informed me that 2 of my tires had flat spots, and due to the extreme tire wear even their "perfect alignment" could not stop the car from pulling. I said to rotate the two "flat spotted" tires to the back, and once this was done the car tracked strait, did not pull, and did not vibrate untill it reached about 85. All was great untill about a month ago, where out of the blue the car started to pull again, and it's alignment is way off once again. Furthermore, the front tires looked new when i had them rotated(old rear tires, now on the front), and now the inside of the driver's front tire is completely bald. My car has officially worn out a set of $350 tires in one year. My front end is relatively tight, although I do think i need to replace my track rod mounts here very shortly (right side is starting to clunk), and my drivers side wheel bearing needs to be replaced(bought the bearings today). I've spent over $600 in tires, front end parts, and alignments, all to have a car that wears out tires in a year, pulls, vibrates, and is mis-aligned. Where have i gone wrong? what do i need to do to have a nice riding and driving mercedes???? I'm at my witts end and am about to turn the car into a junker that i just beat into the ground and throw used 30 dollar tires on. Any help is greatly appreciated!!
thanks in advance,
Ryan

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83 300SD.......sold
96 integra SE....sold
99 a4 quattro....sold
2001 IS300.......sold
2002 330i.........current.
2004 highlander limited....current.