Terry It could be a bad bearing to start. Low fluid. Loose tube end where the bearing sits in. It may wobble in the housing. A bent axle. Your tires and wheels are all balanced? What happened to the bearing? got a picture. Are the roller in it chewed up? Are they blue or the races blue in color? How is the end play on the axle? Need a picture or some more info to look at. Is your rear have a tube support assembly welded to the housing across the back? If you do any hard drive, recomend having one welded to the housing, if it fits. Mic the bearings and the tubes. I donot know what the clearance is but you could call Currie ent, they would give you the spec. How much
oil is in the center section. You don't have seals in the tubes? Pictures would help. Rick Lake