I have a few questions about them.
I have a good bit of play in the bearings as in I can push up and down on the shaft about one inch back and forth. I've read they are floppy from the factory and never go bad, I've read they should be replaced when they are like this. Should I replace them? If the bearings are worn out can they make a bad wheel bearing noise in the drivetrain? I'm getting a bad bearing noise somewhere but having trouble chasing it down.

