Rear passenger axle noise

Hello all its been a while, Ive not long returned from deployment.
My wife has been complaining about a noise from her 2005 expo.

As she drove the truck today I have narrowed the noise down to the right side of the half shaft. From looking underneath and comparing what I was seeing and hearing, the track bar is not centered. Its more in on the driver side and out on the passenger side. I had her to stand on the running board and shake the truck.
I can definitely hear a kinda cluck? It sounds like the half shaft going to the tire but at the same time the bushing on the outer tire rod end. I can't determine what it is exactly.

when you rock the truck you can definitely hear it. Its not like violent loud but i'd like to get it taken care of. Any suggestions would be greatly appreciated. I looked for some grease points but I don't see none..

2nd question for the grease points that I do see how much do I grease it? how many strokes? Please help,
thanks in advance.

I would try tightening the shaft nut. If it is loose that could cause the shaft to move. If it is tight, it could be the hub bearing going bad that also causes movement. With that tire still on but up in the air, try moving it in a prying motion (side to side, up and down, right to left and left to right, and any other direction) to see if there is any movement. There shouldn't be.

Turns out it was a bolt loose.
when they changed out the suspension there was a bolt willy nilly that rattled...