my driveshaft bearing went bad, so, I bought a new one, dropped the shaft uneventfully, and was taking the two halves apart andLOST MY MARKING!! I've dropped the shaft and reinstalled it 5 times now, getting a little closer to being in balance each time, but my hands and back are killing me... Im debating giving up and just paying the driveshaft shop the $120 bucks to rebalance it.

if you do the center bearing, whatever you do MAKE SURE TO KEEP THE TWO HALVES IN LINE!!

 

Good advice, and sucks about your situation...