I hate to say this, but THE NOISE IS BACK with worsening symptoms:(
This may or may not be related, so I'll let you decide. The noise came back and now I'm hearing it from both sides. When I get the nice 'pop' I can feel the truck start to decelerate.
NOW, since lubing up the front end, I've noticed that the front end likes to 'walk' to the right when I let off the gas pedal and occasionally just driving around. It does it worse at high speeds and YES I checked my lug nuts. Coming to a stop at low speeds, I hear a loud squealing that's almost certainly the brakes.
I feel like my brakes are probably dragging, and I have a feeling you'll probably agree, but we'll see.
It's strange that this has started to become an issue suddenly.