The bushings cannot be replaced separately from the suspension components on many of the links, only the front control arms. The rest of them are vulcanized in place, and the rubber flexes with suspension movment. You must replace any part with such bushings.
See FastLane for prices, they are much better, even with the duties, than going to the dealer.
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!