aluminium rear hub carrier ?

[melruss615]

i have read the tip on mounting the AE aluminium rear hub carriers on xfactory's website and i'm wondering do i have to do the modification if i'm using anything other than the 0* carriers or is the dremel mod necessary on any of the aluminum hub carriers? i have a x6sq and a x60. i'd like to run the 0* carriers on my x60. any advice would be great thanks