Corky,
If you haven't done so already, I'd recommend removing the springs from the damper units and moving the wheels from full droop to full bump to check if any other clearance issues. I mention this because in my case I had to remove and 'resculpt' a few areas of the bodywork to ensure clearance (one side more so than the other!).
Also, increasing rear toe-in by shortening the trailing link has the effect of also pulling the wheel forward slightly, so if rear toe is currently off, it may explain why one wheel is closer to the mud-flap than the other