[deskjet_18]

Well first of all your u joints could be drying up. Check on them so see if there is a grease nipple to grease them. I know mine don't and i dont think they do until you replace them and the new ones do. Second its hard to find which u joint is squeeking but the clunking noise should be easy to find if you just grab your drive shaft right near one of the u joints and try moving it up and down. there should be no play also try turning it it will turn a little bit but what you have to watch for is that both shafts are turning your drive shaft and your intake shaft you should not have play in the actual ujoint. do this to all your ujoints and hopefully you find the one with play in it! Good luck let me know how you make out!