axle grinding

[slideways92]

First off I love ford just wish there suspension design did not suck. So help me out here guys don't make me buy a Chevy. So the twin traction beam on the passenger side of the truck the axle is exposed on the front and there is a shiny stripe where there is no rust and the axle housing or traction beam is rubbing the axel. So I replaced the axle pivot bushings. This did not solve the problem. My next problem is when i disengage 4x4 the front end makes a rubbing grinding noise. I can see the u joints in the center of the ttb setup has a shiny surface where they have rubbed. This noise is scary and does not cause much vibration in the wheel and goes away after a good 10-15 min of driving. What do I need to replace? oh btw the truck has new lower ball joints on both sides.? I need help as a new guy on the forum.