Difficult to pinpoint suspension noises, especially when it only happens while driving. Once in a while a spray of WD40 will make it briefly go away but it is very frustrating when you spray one part a time and never find the problem. A second opinion is far easier.

I try to never replace parts to narrow down a problem unless they are living on borrowed time or are very inexpensive. Suspensions are a different story. I know how long the current suspension has been in place. Since the lifecycle of most moving parts are about the same, it is already torn down and cost of multiple alignments adds up fast I bite the bullet and do all of both sides at one time.

Hopefully the shop was able to make it squeak on the rack so you have some confidence they are on target or at least take a drive with you to hear it.

There are so many posts here where someone has replaced several parts and problem still exists. I hate that. Are there any more symptoms you haven't that might generate more input for you?

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas