My new 2004 4-Runner with 10.000 miles has a vibration at 75 mph. it starts at about 73 mph and goes away at about 80 mph.
Drives me nuts. it fills like a drive shaft or something in the drivetrain out of balance. It has done this since zero miles. My dealer has balanced the tires three times. They tell me it is the air moving through the factory equipped luggage bars on top. But I say B.S.
Can anyone help!