Try to find where the noise is coming from, having somebody else behind the wheel helps a lot, have somebody steer left or right in yor driveway while you listen for the noise, move the truck backward/forward doing the same, you could lift the front with a jack right in the middle of the crossmember and get both tires in the air, then wiggle the tires from 12-6 then 3-9 oclock position, jack each invidual tire up/down and see if you can reproduce the noise, also make sure that all components are torqued down accordingly.