Thread: proper diagnostic process for RB?
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      08-08-2019, 09:24 AM   #19
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Drives: E93 M3, E60 M5, F15 X5, E46
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Originally Posted by dardapimp View Post
Aren't the 2011's aluminum bearings? Why does it look like they they have copper in them? Or is that just from the heat
I was wondering the same thing. Looks like the older bearing.
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