Rear ball joint tool on eBay.
 

Shameless plug. Sorry. ;)

I decided I don't need this thing anymore. I used it exactly once on my e53. It's up on eBay. Starts at $19.99. I think I paid $130 for it. You need this tool. Get it!

http://pages.ebay.com/link/?nav=item...d=301611498684




Sent from my iPhone using Tapatalk