hey guys!! I have a 2005 X5 4.8is and I'm having some troubles with my rear diff, took it to the dealership and they said to me that it needs to be changed.. they said that the 2005 X5 3.0d rear diff is the same one as the 4.8is and that they can instal that one.

do you know if this is true!??

thanks for the help!