I have 04 wj with a 3inch lift. When I'm in 4x4 and 4x4 only I get a clicking noise coming from under my jeep. As for my set up its a 242 select trac with the Rezeppa-fixed yoke. I no that they do go out. I have 128,000 on my wj. I saw that the boot on the rezeppa part looks like it ripped by the transfer case. Any thoughts?