I have shuttering vibation when driving at 60 to 75 mph its a 2004 F150 Ford

There is a recall per my dealership. I have a 2004 F150 that was just doing the same thing this past week. I changed all four tires, alignment, etc. with no results. Finally found out that there is a recall for the emergency brake cable system. Even if the brakes were not on it would vibrate and would seem like I had a flat tire. My truck is in the shop today being fixed and I will know more when I pick it up if there is any additional problems as a result of this. So far, I need to pay to have new rear breaks. Good luck!

Check the universal joint by the transmission. If you hear a rattling noise, then likely that's the problem. I went under my 2001 and the rear u joint is kaput.

Try balancing the wheels-have a look and see if one or more of the balancing weights have come off the wheel{s}