The other day I started to hear a high pitched sound from the front left side of my car and I thought it was my rotors. Turns out that my alignment got so out of wack that my tires were rubbing and basically wearing away.
If they were rubbing to this degree, you should be able to see it either as tire damage or rubber build up on the contact point. On what part of the car where they rubbing or are you referring to the way they contacted the ground?
I brought my car to someone who was able to align the car about a year and a half ago and now they say that can't align it now.
If this suddenly happened after a year and a half, something must have broke. Alignments don't suddenly go bad without impacts. They gradually deteriorate, but never to a point of creating tire contact anywhere.
They say everything looks fine but it seems that the lower control arms need to have more adjustability than they currently have now. The camber and caster adjustments are majorly out (4.0 degrees) instead of around .25 degrees as I am told.
Lower control arms don't adjust for caster or camber, only the upper arms do. Also, the specs your quoting seem somewhat suspect, but if your unfamialir with the terms, you maybe mixing things up. 4 degrees caster would be a good thing, 4 degrees camber a bad thing. .25 degree caster would be bad, .25 degree camber would be good.
The tires are sitting too in now.
By "too in" do you mean at the tops, bottom, front, or back of the tire. This will help us figure out what may be wrong.
These adjustable upper control arms from alterkation seem to address the very problem I am having. Any suggestions or opinions on this would be greatly appreciated. I don't really understand this stuff very well but I can pass on any info to my mechanic . These upper control arms according to the description allow camber and caster adjustments in the range that I was told I need.
Here is the link:http://www.reillymotorsports.com/store/product.php?productid=16166&cat=265&page=1 
Nice part, but may not be needed to fix your particular problem. Lets dig in to this further first.
That the strange thing everything looks fine. The car has a new steering box, inner tie rods, wheel bearings, and front shocks from 2 years ago. Maybe the ride height is wrong how can that be checked? I'll check out the links posted.
Are those all the parts that were replaced at that time? If so, potential failure points are- outer tie rods, idler arm, pitman arm, strut bushings, upper and/or lower arm bushings. I'd bet the arm bushings are toast if they were not replaced and you're dealing with excessive camber problems. Ride height can cause problems, but this would have been evident for the past two years, not a sudden failure like this.
BTW, if you could post pics of various parts along the way, it is a HUGE help in diagnosis. If not, we'll try to talk you through it.
