Driveline Noise 2003 Ring & Pinion?

I have a 2003 avalanche that has been to dealer twice so far they have replaced drive shaft and a module in transfer case still makes clunking noise when shifting trans and up shifting they don't seem to have a clue any help out there ?

Try searching all the threads on here about driveline noises and see if one or two do not describe what you have and help ya out...

HTH