chirping when clutch is out

the trucks good , and I recently put a new clutch pressure plate and throw-out bearing in. about a thousand miles later this cirping started.
It more noticable when the truck is in idle with clutch out , when u push clutch in the chirping stops. let it out and the noise starts again.
its not really a tapping more like a chirp only when clutch is out?
It doesnt drive any different...just the noise is bothersome.
any suggestions would be appreciated
thanks

mine chirps in first gear and second when going real slow. i think it is the back U joints in front of the rear diff. i had it lubed and have sprayed silicon on it. didnt help much. let me know how you get this resolved.

dude
i just had a new control arm for the throw out bearing installed
it seems to have stoped at least i havent heard it yet:>

yes they told me that was what it was , but the noise comes from the rear it sounds like. i thought it was the U joints in the rear / any help on this one would be nice.