New front Diff.

[drmiles]

Read again it is noises in the frone end.
Some or front shocks, some or tie rods. Sometimes its it the crossmember flexing when the truck is turning.

My 03 made the noise if I stopped fast or backed up and turned left. The dealer can remove the crossmember if that is the problem and grease it, this only gets rid of the problem temporarly. As far as I know they don't have a permenant fix. Check with you dealership. Something loose can be a big issue.