Driveline vibration?
 

On other Mustang forums I'm seeing threads about people experiencing vibration between 50 and 70 mph. And Apparently Ford doesn't know what to do about it.
Is this true or are people just blowing smoke?

Guess not.

It is true, and I understand Ford has replaced some driveshafts because of it.

I already linked this in another thread but why not get it out as much as I can. It is definitely a problem, and a fight I refuse to have with ford so I'm having my aluminum 1 piece installed on tuesday. I'll report back as to how it turns out, but anyways check out this nearly 80 page thread for more info on the fiasco http://mustang6g.com/forums/showthread.php?t=15990

That's where I saw it. Strange how no one on this forum seems to have the problem.

I do, mine starts at exactly 60mph and at 65 it so bad, it really feels like the wheels are gonna fall off the car.