If it's clunking, then something isn't quite right. I'm not clearly understanding your problem, however. Is it not driving correctly, or is it entirely a noise complaint?

The lower control arm bushings on the 210 have proven to have a limited lifetime. As I recall, that manifests as highway speed vibration. In my experience on other chassis, as the rubber ages and hardens it transmits more noise and impact harshness into the car. Doesn't sound like your problem.

Have you investigated how the rack is mounted to the chassis? Is it rubber isolated? Is there a rubber coupling between the steering column and the pinion input, similar to the old recirculating boxes? Trying to think of what might get loose in the steering system... I'm not thinking of anything new that clunks.

- JimY