Popping sound in front end?
 

Like the title says I have a popping in my front end that I can't seem to fix. It pops when I just start driving or when I turn but it doesn't do it all the time. Ive replaced the sway bar bushings, axle shaft join's, greased all the zerk, got a new steel steering box spacer since the factory one was broke and replaced my front driveshaft with a built one from Adams driveshaft. When I replaced the driveshaft the noise went and but started a few days later when I went on a dirt road and had it in 4wd. Everything else on the front end seems to be tight and I'm not a big mechanic so im lost now.

Tighten the track bar mount to frame rail bolts.

And check to see if the bolt is loose at the axle end letting it move