Noise starts from a dead stop until around 40mph and will come in reverse and on stops. Sounds like birds cherping and im thinking that it might be a u joint because i also have a vibration when im driving. The vibration isnt rough like a busted belt in a tire or anything, just can fell it in the seat when on the high way at cruising speed, am i in the right area? what do you guys think

 

Sounds like a pretty good diagnois to me. I'd recommend getting the shaft balance while you have it out.