I drove 200 miles across Ohio with cruise set. Pavement didn't matter. It seems like it could be the torque converter - possibly... although, it is possible it is the tires, especially if you say yours has slowly gone away. I am still only 998 miles as of today.Thanks for all the replies! MY Stealer...

Anyone else notice this? When cruising at 60 - 70 mph (anywhere in there, just hold constant speed) I get a one and off vibration mostly in the floor, but you feel it in seat and stearing wheel. Passenger can feel too. It's not unbalanced tire - I know what that feels like. It's almost like driving ...