Jadam,
Have you pulled the hubs and checked the splines on the shaft? Also while there make sure the clip that holds it in place is still there. If the clip has broken, come off or is missing when you turn the shaft will pull back and possibly damage the splines on the end of the shaft and cause your noise during turns. It is easy to pull the hub cover and check...a 15 minute job. Have you changed cv's? Maybe the retaining ring was not installed correctly on the inner side of the outer cv? A little messier to check but worth a shot. That ring not being in the slot would allow the balls to move outward excessively during a turn.