Why does the front end vibrate then stop when we get up to 45 mph???
Easy fast answer in my opinion would be brake rotor or wheel bearings going bad, does it pull when braking?
Also worn tires and worn suspension components will contribute to it. Unbalanced tires and out of alignment as well.
A tire out of balance or out of round. A bent wheel, bad wheel bearings, front end out of alignment, damaged or worn suspension or maybe a bad brake rotor.
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