Hi everyone, im new here. I have been searching the forums for a few days to an answer to my question. I just bought an 03' 2500. I now am getting a vibration issue under acceleration. However when i lift off the petal the vibration stops completely. I found that it could possibly be the U Joints. I also would like to know if the front drive shaft is supposed to spin while the truck is in 2WD. I jacked up both of the tires indepently and spun them. THey both turn the drive shaft. Can anyone shed some light on this situation I have?

 

front should be spinning if in 2wd since it the 4x4 is engaged in the transfer case, u joints are a common problem

 

Thanks, I appreciate that.

 

ujoints, if your gonna do one you might as well do both ends of the shaft