You have a lower swing arm, which is the big one that has the bushings built into it. They are not replaceable and you must replace the whole part. About 2hrs of work. They vary around $220-350.

Then you also have an upper control arm (wishbone). And upper control arm (guide link). These guys are pretty cheap $ 70-80

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2010 X5M /// R63 AMG...Wifey's 540HP Family Hualer

2001 X5 3.0i Sport 335,448 miles & counting...
SMG M3 Steering wheel
E46 Stainless Racing Headers
4.6is Exhaust
Turner Pulleys
Afe Intake
Brembo drilled rotors
PowerFlex Bushings
Hualingan
30mm H&R Spacers rear
20mm H&R Spacers front
Bavarian Autosport High-Performance Coils
Active Autowerke's Performance Software