Could be a universal joint gone bad.
most likely your U joints on the drive shaft are worn
Coming from the drive wheels? Could be worn CV joints
Make sure it's not in 4 wheel drive.
A bad wheel hub searing can cause vibration on your steering. Loose or broken steering and suspension components can cause vibrations when accelerating, decelerating or changes in speed. Worn tie rod bushings, damaged struts or shocks are common causes of vibration. Drivetrain problems, such as a bad wheel bearing, damaged CV-joint (front-wheel-drive cars), a bent or imbalanced driveshaft (rear-wheel-drive cars) or missing chassis/drivetrain damper weights are all examples of speed-sensitive vibrations.
a blown transmission
I have a 1997 f-150 4x4 , the same thing happened to me...it was the wheel bearing
Worn/loose u-joints are very common.
It can if it is really bad. Try not to drive it and have someone who is mechanically inclined check it out, it could be a number of things.
What kind of howling? Or is it a whining? Where does it sound like it's coming from.
well, if it's rear wheel drive, sounds like it could be something with the drive shaft...
That is when all your wheels are accelerating.
because of ignition coil faulty.due to mountings,abnormal fuel pressure.