Clicking noise coming from rear

Any one hear a clicking noise coming from the rear when on pavement? The bike runs and drives fine, muds fine. Never hear any drive line noise or vibrations. Ive checked the cv axles and they are tight. Pulled the fill plug on rear diff and checked all the teath and there goos and u joints on rear drive shaft are tight n good. Im thinking it may be just a little bit of slack thru out the drive line that i hear. It only does it on pavement when turning.