Lots of possibilites there.

Bad shock

Bad radius rod (track rod) body mount, could even be the control arm mount

Bad tie rod

Bad ball joint

Loose caliper (unlikely, but it happens)

Bad upper ball joint and /or bad sway bar mount

Bad lower control arm bushings

You will have to find the bad part -- most likely loose -- with the car stationary.

Peter

__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!