I was driving the other day and all the sudden I starting to hear a loud clicking noise. I hoped it was just a ujoint but thats never my luck. I kinda have it some what down to the transfer case. I pulled the rear drive shaft off and drove it a little and the noise went away. So i think its the rear output in the transfer case. whatever it is, is very loud and seems to only do it under load cuz no noise is heard jacked up. The noise also speeds up as i shift.