[jessrayo]

I'm posting to keep updated on your progress. Something is wrong. I can tell you that I can take both of my Camaros to 190+ without touching the wheel and dart in and out of traffic at any speed with no sense of instability. My cars are crazy rock stable. Now when I mount the drag radials..... waaaaay to much sidewall sway so it magnifies any sudden lateral movement. I would have the alignment checked and then have them look at the differential. It sounds to me like you are not locking and then getting undesirable torque vectoring from the rear that is making it dance. It may be hard to get a dealer to reproduce this or address it. Good luck.