I have a 2004 Ford F150 that has some front end thumping noise when hitting a bump. It also sound like one of the front wheels is making a wha wha wha sound (it gets more noticeable as you slow down). I have replaced front hubs and bearings, all tie rod ends, pitman steering arm, stabilizer arm, new front rotors and pads, new tires all the way around, and new shocks all the way around. The ball joints feel good, and the control arm bushings look ok. It looks like a could replace sway bar bushings and links but not sure if this will take care of the wha wha wha sound?

 

2WD or 4WD ?

 

Guess he forgot to check back. My truck does the same thing but only at about 50 MPH or more. What you think it might be on a 4x4 techrep? Doesnt change when you kick it in neutral so dont see it being in the drive train.