I have a 2007 Edge that we recently purchased with 31,000 miles. The initial test drive we did not notice the vibration but after we purchased it we felt the vibration at 52-60 miles per hour. Wheels have been balanced twice, passenger rear rim has been replaced, new tire on the rear right, all four tires and rims swapped with an other Edge, and the drive shaft removed to the rear all to eliminate the vibration. Nothing has worked. We actually feel the vibration has gotten worse. Reading the forum I question if the axle bearings could be going out. A friend who is a mechanic thought even the transmission could be the problem. 2 years on the drive line warranty left.
