Nucklez

I'm getting a squeaking from my drivetrain. I'm trying to diagnose if it is the u-joints or my tranny. The tranny does make a sort of noise when it is in gear and moving with the clutch pressed or not. It is sort of a loud gear turning noise. The squeaking also goes with the clutch pressed or not, and I can hear the squeak good when I move the car with the windows up. So pretty much I'm thinking I need a complete drivetrain rebuild. So with that, where can I get the Racing Beat Drive Shaft, and where should I get a good rebuilt kit for the tranny? If you guys want to ask questions go ahead. Thanks