Front end clunk - is this sway bar end links? (video)

[dudmleh522]

with 4A on the street. zero noise. So i would assume uneven, rocky off road type of surface is causing something to make those knocking sounds?
but in 2wd in off road doesn't make that knocking noise.

 

[nikhsub1]

with 4A on the street. zero noise. So i would assume uneven, rocky off road type of surface is causing something to make those knocking sounds?
but in 2wd in off road doesn't make that knocking noise.

Have you done a good inspection under the truck? Take the skid plate off? It isn't unheard of for the front diff to just crack, unlikely but check. Have you checked the axles? I would test for a bad wheel bearing on both sides. I would probably also take a look at the IWEs for any signs of wear. Sway bar end links are a common source of noise but if it goes away in 2WD, that doesn't seem like a logical culprit.