2002 1500hd Drive-line Vibration

[importkiller76]

Hey guys havn't posted in a while but I need some help. I bought a 1500HD a few months back so my wife could drive the 08 when the baby arrives (only a month now!). Drives really good but now I've developed a drive-line vibration. It's not wheels/tires because I can feel it in the pedals rather than the steering wheel. Checked the driveshaft and everything appears to be fine. Seems to only be between 80-100 km/h as well. Any ideas guys? U-Joint? Tranny? T-Case? Let's hear the theories!

[Shaners]

Drive shaft carrier bearing or a bent wheel or possibly a wheel weight has come off or one of the balncing weights has fallen off the driveshaft.

[kifels]

are you getting vibrations while accelerating? braking? driving constant speeds?

[importkiller76]

got er figured out guys. Decided to try U joints. Took it all apart and needed all new u joints. Turns out they were original and now the vib is gone!