drive line vibration 45mph and under

[presterone]

If it was carrier bearings wouldn't it be at high speeds? This goes right away at 45mph kinda makes me curiois.

 

[MellowVR4]

Possibly the lobro joint.

 

[losermakesgood]

The lobro joint is basically an enclosed u joint. Wouldn't it have the same characteristics as a u joint? Is the problem constant below 45? Or more in line with the rpms?

 

[presterone]

Speed dependent I had it on the lift today the carrier bearing is really loose you can move the driveshaft up and down probably five inches.