Thanks for the input guys

It's coming a parts this weekend and am hoping to fix the problem while its apart.

The vibration starts around 25-30 mph. I plan on having both front axle shafts balanced when I have it apart for the coilover swap. I do think it's either the axles or the differential, just wondering if anyone else has come across this before.

They are clocked correctly. I marked them before I took anything apart.

They are clocked correctly. I marked them before I took anything apart.

I have a vibration in my front end when the hubs are locked and the transfercase is in 2wd it goes away when I shift into 4wd or unlock the hubs. I have completely gone through the entire front end and think the problem may be an axle shaft out of balance or possible the Detroit truetrac that I have...