still have a crazy knocking sound from front

[blizz]

when going over bumps. ball joints and tie rods have been replaced. it sounds like something is very loose.

 

[xanatost]

Check you sway bar bolts and and rubber mounts

 

[blizz]

forgot to mention that I also replaced the sway bar links and they're nice and tight now.

 

[sumo]

I'd recheck ball joints while truck is on the ground. With the suspension fully loaded you can see if you can get some extra turns o the castle nut

 

[pilot62000]

Check the power steering rack bushing:http://www.brakeandfrontend.com/gm-simple-steering-noise-fix/