I had an other session with my mechanic this afternoon. We checked for misplaced suspension arm. There is apparently no possibilities of mix-up. One part can not be installed where it does not belong.
All springs (4) are original and no pads have been added/replaced/removed.
Shocks; We disconnected the 2 rear shock. The car came down by about 3/4in. (Shocks are original type Boge)
Sub frame bushings: Still in very good condition, not collapsed or any visible deformation.
Very strange. Any other idea? My mechanic told be he'd do everything required to fix it (no charge) but he simply can't find what's wrong with it.
jackD