Well, I rebuilt the track rod bushing, lower ball joint, new tie rods on both side. Did the rear subframe bushings. Took it to the indy alignment shop. Car still has horrible vibration > 50 mph. I don't think it was aligned properly. It seems to drive straight. What are other variables?

What to do next? Very frustrated at this point. I tried to get close as possible when counting the groves on the track rod and tie rod.

Thanks,

John