Never felt since new 96 pathy.
 

My steering wheel shake. Tires are perfectly balanced on calabrated machine..At 55 mph the wheel shakes ALOT. Gets worse at higher speed..THE first problem i have had since new!!! Tires dont look out of round..Happened overnight..never hit anything..My guy suggested the "steering box" could be vibrating..Leaving monday on a LONG trip..Please help