Been doing the negative camber rear end trick for the last 30 or so years with not one bearing problem to date. If you bend the housing at or near the bearing, it will eat bearings all day long. You MUST bend the houseing as close to the center as you can. This way the bearings will never know the difference. There's plenty of play in the spider gears to allow this legal (???) mod. 2deg max please. Works for me.