Popping noises on these trucks seem to never quit. I think most will remember me chasing a popping noise I had in my truck. I have replaced every part in the suspension and bushings, cab/core support bushings, motor/tranny mounts, steering box, every piece you can think of. My popping noise started off doing it every once in a while and was progressively doing it more often. New brakes front and back didn't stop it either. After replacing every suspension part and bushing, it still did it. It got worse and worse.
It was weird. If you were turning to the right while braking, it would pop. Turn to the right again, no pop. But, turn left the next time, it would pop. It got worse. About drove me nuts. I checked everything I could think of. Found nothing. I finally gave up and said whatever it is will quit when it falls off.
Well, it has just about quit by itself. It only pops slightly. To tell you the truth, I can't remember when I've heard it. It was popping at every turn. I have no idea what it is or was. Only thing I can think of, may be is a loose frame rivet or the like. I checked them all and didn't see any evidence, but stranger things have happened. I'm just glad whatever it is has about stopped.