no way to tell how long it will last. my father inlaws dodge lasted about 25 miles between when it started growling and when the wheel fell off. sometimes they last a while. not something i would let go personally. it cost him the money for the bearing and since the rotor against the pad bracket and the cv was the only thing holding the wheel from leaving all that had to be replaced too
I may see what next month brings and go from there because the rear wheels are starting to turn inward towards the rear shocks and I know that is a good indication that something isn't right with those hubs. The only hurdle I need to clear is how to remove the striped out bolts that hold them in and not damage anything else around that area.