To test ball joints you jack the truck up and check for up and down play in the front wheels. I don't know about them specifically making noise, could just be control arm bushings.

 

I will try to get the truck jacked up to check that out.

 

It could be the wheel bearings, both of mine went bad and it sounded like a WW2 tank every time I went around a corner, sqeaked like a bastard.

 

It doesn't make much noise when the truck is moving and turning. Only when moving straight and going over a speedbump allowing the up/down movement of the front end. The only time I heard it squeak when turning the steering wheel was when I was parked, idleing and turning the wheel from lock to lock. And when doing that it was not all that loud. Like I say, it makes the most noise when I'm parking and rocking the truck while standing on my step bars.

 

Mine had a pretty bad squeak when I would go over speed bumps slow or turn at slow speeds. It would even squeak when I got out of the truck which made me feel like a fatass. Lol after I did all my front end work which included ball joints and wheels bearings, it stopped. But my guess would be ball joints

 

How long ago since you greased the,?
My one lower one did that, wouldn't take grease anymore so I replaced it, been good since.
Just keep em greased up regularly

 

I didn't think the factory ones are greaseable? Atleast I sure didnt see a zerk on the upper one? Maybe I'm missing something.

 

the usual thing I get with upper joints going out is I start hearing a popping sound when backing out of parking spots, usually with the wheel turned hard one direction or the other. Squeaking also is a sign as is wandering down the road, kicking one direction or the other when you hit a bump at speed, general unpredictability on a bumpy road and strange tire wear.