Truck rocks from side to side at slow speeds

[trucku]

At very slow speeds my truck seems to rock from side to side. Once I accelerate to normal road speeds above 30, it stops. This has been happening for a while now and since then the following has been replaced.

new front hubs
new rear right hub
new struts and springs all around (rear springs were totally cracked to pieces)
new lower ball joins in front
new upper control arms in front.
rebuilt calipers all around.
new rotors all around with semi metallic pads
front brake hoses replaced. (truck stops like a champ now)


Also found a set of tires and rims, so they were also replaced.

Truck does not rock at speed, and the steering wheel does not shake at all.

I don't get it. Just weird. Also does it on any road, not just the bumpy ones.

Could a bad CV joint do this?

If anyone can help, it would be appreciated.

Thanks!

 

[Number4]

Are your sway bar links original?

 

[trucku]

Are your sway bar links original?

Front ones were replaced few years ago. Rears replaced about 5 years ago.

 

[apenland01]

Does it still do it with the ASC off? Try turning it off and see if it still rocks.

 

[trucku]

Does it still do it with the ASC off? Try turning it off and see if it still rocks.

Truck is a xls, no ASC. Used to be 4x4. I put in AWD transfer case in it two years ago after issues with 4x4 transfer case.