One of my hubs is slinging grease. Pulled wheel and hub. Took off seal. It looked ok to me. Went to the parts dealer and he said that it looked ok to him too. He checked and said that the outer lip of the bearing I brought him was too narrow (3/8") and that it should be 1/2". Would this make a difference? Also, bearing buddies says to pump grease until it oozes out the seal on the buddy. OK. But, how much grease do you pump into the zert on the back of the hub for the inner bearing?