This is the OE hub for my car, and after 70k, the old one still felt tight. However, the reluctor ring (magnetic segmented ring for sensing wheel speed) is essentially a rubbery sticker on the rear end of the bearing. So of course it just freaking falls off and sets a million codes. Can’t be purchased separately, so you end up replacing a $150 part for a $3 ferrite ring. Freaking cheap, GM.