Marble sound from AW4 transmission

[tprice1115]

Hey everyone, I've had some driveline vibration after installing a 2" lift on my 00 XJ. I also had a weird marble like sound when spinning the rear drive shaft by hand with the car off and shifted into drive. I thought this noise was potentially a bad input or output bearing in the transfer case. After removing the transfer case, I turned the shaft directly in the transmission and can still hear the marble sound. Does anyone have any ideas or know what this may be? thanks in advance

 

[john423]

The noise could be from a worn bearing or an issue with the transmission output shaft. Check the transmission fluid and inspect the shaft for wear.