Only true comparison I have seen between the S60, the 9" and the 12 bolt.
Read it and you will be surprised at the myths floating around regarding the 9".
Cool. Looks like the S60 isn't as big a weight hog as we all thought and is somewhat more efficient than I would have guessed.
Of course, if you still want the quick gear change aspect of the 9", you could always go with the Mopar 8.75 and have even less total and rotating weight with pretty high torque level support.
Of course, as pointed out above, how many people really utilize the quick change aspect of the drop out third member? Probably even less than use the quick spring change aspect of coil overs for a suspension.
