Hey guys & gals. I bought a 1967 GTO and found out the rear had been switched out to what seems to be a 1969 Olds 442, 391 posi, via the markings. The problem is that the rear is shifted 1" towards the drivers side. The frame is not bent. What gives? Can I swap out trailing arms to correct this? Anyone know what the issue is? Does a 1969 442 rear not swap into the 1967? any help would be appreciated. Thanks in advance.