1991 Oldsmobile Cutlass Car shakes at highway speeds

Shakes or Wobbles problem
1991 Oldsmobile Cutlass 6 cyl Two Wheel Drive Automatic

My oldsmobile just started shaking while going down the highway. At speeds under 50 everything is fine. At speeds over 60 the whole font end starts to shake. The sterring wheel even shakes violently. Could this be the front end needs to be rebalanced or is something else wrong.