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Old 09-08-2008, 04:57 PM   #2
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Join Date: Mar 2006
Location: Park City, Utah
Posts: 1,016
My Ride: 02 330xi, 88 325iX
The outer ball joints on the Xi control arms are integrated into the arm. The inner ball joints are separate from the arm. So, if the outer balljoints are good, no need to replace the whole arm, but if they are loose, you need to replace the arm.
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