ya, i know exactly what you talking about. only downside is it could be so many different things. probably the easiest thing would be to put the front of the frame on jack stands and just start moving anything you can by hand to see if anythings abnormally loose. i don't have any personal experience with cv axles going out on any of my trucks but i do know that they make clunking sounds that your describing, because ive ridden in other vehicles with bad ones. and as far as them falling apart because they are loose isn't true. it doesn't take much for them to wear out and loosen up to where there making noise...but nothing to where there just literally gonna fall apart on their own.
