Some other thoughts
1) Rotate and balance the tires and go for a test drive. Maybe one tire is having issues or creating excessive road noise. Maybe a out of balance and the tire wants to shimmy. Often a bump or pot hole sets off a worse shimmy With the steering components.
2) Our trucks are loud, so trying to listen over the engine for anything is hard. Generally when you do wheel bearings you do both sides. (On a trailer both sides, all the axles.) It will only take 30 minutes to pull and inspect the other side. It is common for wheel bearings to wear at the same rate. It could be both sides are bad.
3) Two wheel trucks do not suffer from the “death wobble” generally. (Wheels jerking back and forth left to right.) But if your steering damper is shot (I do not recall if our trucks have one, looks like a shock but hooked to the steering drag links.), your components are worn, and one or both tires has a odd wear pattern or issue. It can cause the front to create a left to right wiggle like a death wobble on a 4x4 but less severe. It will be a shaking/vibration of the truck and felt in the steering wheel. Often noise is a result as the ball joints and tie rods jerk back and forth (They are worn and have slack to do so.) as the tires continue to cycle a little toe in and a little toe out. If your damper is shot replace it. Sounds like you are going to rebuild the steering links and ball joints and that will help. Be sure to get the truck aligned after.
But if you hear rotational noise that changes pitch with speed that is usually wheel bearings, a brake issue (Something is rubbing or dragging), or a bad tire.
Send some pics and let us know how it is going.