Just had my center bearing on my 2 piece rear drive shaft replaced. The old one was shot. After traveling about 3 or 4 hundred miles on the new bearing, the slinger in front of the bearing started making noise. It is loose on the shaft and I can spin it with my finger. To tell the truth, I don't remember there even being a slinger installed before. The end of the driveshaft is belled out in the same shape as the slinger. Everything else seems ok. I duct taped the slinger so it would stop spinning and making a dang racket down there. Anyone ever had one of these apart and know if out rams are supposed to use the supplied slinger? I want to know what the problem is before I take it back to the shop that pressed it apart and back together. Thanks