Your right, I'm very sorry not sure what i was thinking. Sounds like to me the universal joints might be getting dry and may need some grease. Factory universal joints arn't serviable, but you can get a grease needle injector from your local auto parts store. After you shoot some grease into the boots of the joints, try and move them with your hand and see if they have excessive movment, if they dont the grease should do the trick. Thanks again and if you have anymore question, feel free to ask.
Your AUTO SURGEON