Front end vibration

[GT15]

My 2007 GT has front end vibration. Between 55 and 75 MPH. The front end and steering wheel shakes. Not excessive but bad enough to be annoying. The car came with 20" wheels. The Ford dealer balanced the wheels and checked front end alignment. They said everything looked ok. Any ideas?

 

[streethorse]

Id start by rotating the back wheels to the front. That will tell
you if its one of the wheel/tires. What kind of condition are the
tires in. A tire with multiple patchs sometimes can not be ballanced.

 

[StreetsideStig]

^x2 I had a similar problem with my tires once. Rotating them is a great way to check.

 

[arcwcb]

Is it lowered? Maybe it's a bad lowering job that is causing the shakes.

 

[SpartaPerformance]

Streethorse is right 1st start with rotating tires and see if the vibration moves to the rear or changes then you know it's in the wheels. Get back to us after that for additional advise.