02 Ford F-150, when it hits 40 it starts to shake violently. What could be wrong?
Everytime my truck hits 40 it starts to shake violently. If I make it past 40 with only a
small shake it starts to vibrate, specially at 65, 70, and 75. It is a four door, lifted.
Most common is a tire problem, broken belt, out of round, bad balance, next is a rim problem, bent or broken, then you start looking a steering components, tie rods, ball joints, bushings, stabilizers.