02 Denali grinding when I hit a bump

[Xanzgod]

Hi there I got an 02 Denali

It's weird but sometimes when i hit a bump (at low speeds) i get a LOUD grinding noise up front. Or when the road is uneven. Also when the truck is under a load you hear a noise like a wheel bearing? But it's only on the driver side.
I replaced the wheel bearing with Moog.

I know i have a bad ball joint. But that's it.

I think i could be my transfer case bearing going out. Or the driveshaft completely.
I'm having a big trip coming up from WA to TX
Thanks to everyone for helping me!

 

[OR VietVet]

Ok, you replaced a wheel bearing and found a bad ball joint but did not replace while apart? Correct? Does the noise change depending on what range the transfer case is in? Have you dropped the driveshafts and checked them out? If the noise is when you hit a bump at low speeds or uneven roads that could be in the suspension and there is a whole gambit of inspections there. By truck being under load are you talking about ANY acceleration or hard, pass the car on a two lane road, acceleration? Please share more info if you can. Any work, besides the bearing, in these areas recently?