Axel Half Shafts as a source of Vibration?

[elwesso]

I am sitll kinda chasing this vibration ive been having... Shimming the center bearing kinda helped, however above 80MPH when i let off the gas it vibrates more and then when i press the gas down it goes away for the most part...

Someone said they replaced their axle shafts as a way to rid a vibraiton.. has anyone ever heard of this happening? I have a spare set of axles and we can see what happens, but before i waste any time id like to see if anyone has any experience...

[Q45tech]

Have you changed all the differential mount bushings? And rear wheel bearings?

We have never changed a half shaft unless visaby damaged fron hitting something.

[elwesso]

I have replaced the rear wheel bearing on the passenger side... diff bushings have probably 25k on them (since they were done at T3 with the engine swap). I just had the diff bushings out and they looked pretty good, still pretty pliabile and didnt crack or anything.