Trying to get my driveshaft out of my 77' 280z and the 4 12mm bolts that connect the driveshaft to the diff are impossible to get to and the nuts are starting to round off on the ones ive attempted. The nuts are facing toward the diff, is this supposed to be right? It seems it would be a hell of alot easier if they faced the trans side and I could use an impact wrench on it. Otherwise I dont have enough room to move my wrench and cannot even fit a socket on it because of the limited space. Help me please.