Drive Shaft Vibration

[Front Range 4x4]

A new guy question - My 62 came with a quick disconnect rear drive shaft - REMCO Drive Shaft Coupling- installed making it easy to disconnect the drive shaft for towing. (Apparently my cruiser spent a lot of its life behind a motorhome.) Today I decided to install the stock drive shaft and have a vibration over 50mph. The balance weight is intact and everything else looks good. From other posts I found it appears I should rotate the shaft to eliminate the vibration. Is that right in your experiences or is there another way to determine its correct position? Thanks.

 

[bandy rooster]

the driveshaft has to be in phase...if it isn't it will vibrate..

 

[Front Range 4x4]

the driveshaft has to be in phase...if it isn't it will vibrate..

How do i determine if its in phase? trial and error?

 

[Jan-78FJ40]

How do i determine if its in phase? trial and error?

take it to a drive shaft shop and have it balanced. New U joints are a good idea at that point as well.

 

[60wag]

To be in phase, the ujoint yokes on the ends should line up. If they dont, pull it apart at the slip joint and line them up.

 

[Front Range 4x4]

To be in phase, the ujoint yokes on the ends should line up. If they dont, pull it apart at the slip joint and line them up.

Thanks 60wag, I get it.