when making turn in 4x4 feels like something is locking up car wont move forward or reverse,untill take out of 4x4 only on turns could it be cv joint? sometime makes a clunk sound feels like pass side. any help would be much appreciated

 

If you run the 4x4 on dry pavement and turn tight that is what happens....it is binding up.
should only have 4x4 on in wet and slick conditions.