Jack up the front end. Rotate the front tires separately and together and see if you can nail down which side is locking up when it shouldnt. May have one side of it worn and not ratcheting properly.

Id also grab JY spiders to swap in until you get it sorted out. Or you can pull axle shafts to drive it until you get it fixed

sent from my Samsoon S5 from the bottom of a mud hole