Hi, I'm looking to replace the section of my passenger rear rotor assembly where my lug nuts bolt into. I'm not perfect with suspension or brakes so I wanted to ask if someone was more familiar.

I looked up the part numbers on www.realoem.com but it was unclear to which part actually had the threads for the lug nuts. Can someone please look at this link and verify which part I need to order?

http://realoem.com/bmw/showparts.do?...76&hg=33&fg=40

Thanks!

I'm thinking its part number 5, Drive flange but I wanted to make sure its not part number 1.