That's what I am hoping. Im just gonna live with it for a bit, until I can get new tires on it. Once I get those new tires on, if the vibration doesn't go away, It's going right back to them until they figure it out.

 

I had what sounds to be the same vibration. My problem was cured by retorquing the U-bolts on the rear end. I torqued mine to 115 ft pds and the vibration is gone.
P.S. The u-bolts on my truck were at less then 100 ft pds and I have no idea why the would come loose but they were.