I pulled the hub, rotor, and spindle shaft today to change the spindle bearing in hope's that it's what was causing my stub shaft to not line up in the hub, however all bearings look good (still changing them though) however I notice there's quite abit of play in the slipshaft, like if I grab it and push and pull on it (from the front of the truck to the back, not side to side)there's about 1/8 -1/4 inch of play, is that normal? or is there even supposed to be any play at all?