Well -- at least you eliminated the springs as the culprit... and that's "progress".
Would be interesting to see if "others" have the same 1/2" off when measured... like a factory "stack" issue as in - wheel lip high on the passenger side by a 1/4" and "low" on the driver side a 1/4".... I would doubt that - but you never know.
I didn't go back and re-read the thread - can't remember if you said you measured the CL of the spindle "weighted" to check to see if the spindles are at the same point side to side.
HEY WAIT!! I know!! You live in California -- maybe a recent earthquake tilted you garage floor...
