I spoke with a local guy this weekend and he was saying the 8.8 is lighter and provides the same durability that the 9" does. I was thinking about doing the mustang steve cobra brakes upfront and match them in the rear. The 8.8 would accomodate this a lot easier. What are the advantages/disadvantages of each? I here SN95 8.8 are exact width of a 67, True/False?