Beating sounds from left in right curves – Domlager defective?

Yes, it is again a “noise-out-of-wheelhouse” fred. Sorry for that, but with the search I did not find Fred who describes my problem. Problem: In mostly slow right curves (90-degree curve in 30-zones e.g.) it clacks very strongly from the left front. It sounds as if something was loose and a screw had at least 1 cm of play. Heavyest noises! In left curves similar sounds come from rehts front, but not so violent. 1. Solution approach: Coupling rods and track rod heads completely renewed. Also axle cuffs outside renewed (drive shaft completely out had and joints controlled – everything ok). No improvement. Everything seems to be fixed and intact in the visible area of the wheelhouse. However, these noises will only come up in curves. If I drive straight out, there is nothing to beat even with large ground waves. Could it be the cathedral bearings after all? Shouldn’t defective cathedral bearings be noticed somehow even with straight-forward journeys Make it cash?