My 99xj is making a clicking/light clunking sound only in reverse when going idle speed. I belive its coming from the passanger side front. If you give it any gas the noise goes away. Its also the same noise when its in 4wd. I was thinking wheelbearing or u-joint but they both feel fine. Any help is appreciated its driving me NUTS. It doesnt make any noise when driving down the road just while backing up slowly. Jeep is stock. Thanks again