This differential was in my 2007 Z4 when I bought it in 2011. One of the seals was leaking so I pulled it out and installed a stock differential while this one was being fixed. It has new side seals and is a 3.63 ratio. After driving on the stock ratio I felt it was a better fit for my driving...
Has new side seals. Please send email to [email protected] if you're interested and I'll send photos. Diff is located in Houston, TX. I'll ship on your dime.
Rich
713-828-2874