If the locker is in proper working condition, clicking and popping should be considered "normal". Make sure to keep your tire pressures the same on the locked axle.
If you think the problem is caused by the axle shafts, you should inspect them for unusual wear or damage.
Progressive Liberalism: Bringing you new ideas so wonderful, they have to include mandatory participation ......
Originally Posted by Ronald W. Reagan: Government is not the solution to our problem; Government is the problem.