drive shaft lenght

I will know the tire balance question later this week probably. Tires and wheels are new and balanced 3 years ago and only up to around 100 miles of use so far. I bought new rear wheels due to picking the wrong backspace the rears sit in too far for my liking… by an inch, so will have new wheels and move the tires over later this week and then drive to see. It is possible, I am in Regret Phase still, so everything has been considered and rarely ruled out. I am thinking the vibration predates the wheels and tires too… the build has been going on almost 3 years…

I rebuilt the diff all new except for the 7260 yoke and used the crush sleeve…

Also I would like to not accidentally hijack this thread lol.