Major squeaking under truck while driving

Please get your car checked. You may have bent the Tie rods or the control arm and the Ball joint is making the Squeaking noise. Sway bar end links and Strut bearing will also make noise going over bumps.

The noise would usually be the strut or the control arm bushings. The vibration could also be the component making the noise, or warped brake rotors.

yes have someone listen under the hood for where the noies is coming from if it is a belt just replace it

Check your sway bar links, the two bars at each end of the sway bar, connecting to the lower control arms. Sometimes you can spray them with silicone. Most likely have to replace them. Hope this helps. TJ

check the backing plate to the disc brakes, if its been bent even slightly your gonna hear that same noise,, if it is that < Just bend it back out a little

lubricating rubber or plastic makes the wear worse
replace the worn or failing parts

Is the coil spring binding from a bad strut mount bearing?

possible sway bar links, strut bearing plates (they sit on top of the strut), ball joints, tie rod ends. If the you can make it squeek by pushing up and down on the front, have someone do this while trying to narrow where the noise is coming from.

sounds like the lower ball joint is making noise.

Need to help me out more,

What kind of squeaking - how fast - turning left or right - how hard.
Does it go away under any special conditions ie wet, hot, cool etc
Applying brakes make a difference
When hitting bumps or speed bumps

Give me a little more