Help! Dog Tracking!!

Just one more comment. I did take all of your suggestions and applied them. I got a plumb bob and marked on the floor in different locations, cross checked the measurements and I couldn't find anything that was "glaring" at me. The only thing that I did find out was a string measurement from the front wheel to the back wheel and it showed the drivers side being 1/4" shorter than the passenger side but if my front wheels were not perfectly straight when I parked in the garage, it could cause a false reading. I am beginning to think that the factory flaws are at work here as the car has never been hit to cause the frame to be bent and the measurements confirmed that. The wider tracking front tires could be causing the illusion, I just need to follow another Dart Swinger to see if it is the same. Shimming the front spring hangers did not help at all...for either side. So once again, Thank You to all but this case is closed, I can't see much that I can do about it.