unbalanced tires and or wheels
I have seen this with bad or unbalanced tires.
Tires out of balance, bent wheel, tire defect, or suspension or steering parts worn.
usually steering shakes over 60 mph is due to front tires needing to be balanced unless you have something more serious going on.
bad tires or bad alignment or both.
Your front tires are defective. Its time to replaced them.
tires need to be balanced or you have a bent rim or a broken belt in your tire
depends on when it shakes if it shakes when you put on the brakes-warped rotors otherwise it could be ball joints, steering joints, wheel bearings or even out of balance tires
Most likely your tires are out of balance. Take it to a shop and have them balance them and then see how it rides.
Have your tires rotated and balanced. Make sure they inspect the tires/wheels for any damage.
if it shakes while your braking your front roters could be warped or if it shakes while your driving try balancing the tires at a tire shop.
Check the front tires/rims for snow packed in them. That can cause it to be out of balance.
Possibly your wheels need to be aligned or your tires need to be balanced. REPLACE THE STEERING DAMPER