71 Berlina 74 GTV 17 Giulia Q4
some say there are marks but take a punch and make your own just to be sure. The socket size, can't remember off the top of my head but somewhere around 7/8's or higher. When you get the nut off and press off the flange it will release with a big CABANG, be ready for it. IAP offers a good video of rebuilding the driveshaft. I suggest you take a gander at that, can't hurt. good luck!