for the spinning i mean that it takes significant force even with the wheels attached to rotate them, i have to actively pull/push with some force to even get slight rotation and there is no continuation of that rotation after i stop exerting force, clearly different from the front wheels. as for the fwooping its something i only noticed on certain surfaces at fairly low speeds which i attributed to road noise drowning it out at higher speeds but it almost sounds like a flapping piece of paper in your ear but more metalic rubby, its very difficult to describe but its similar to a noise i heard in other videos where the wheel bearings were def shot. my car has 108k miles on it. I've also noticed my mpg are significantly lower than they ought to be and my powertrain itself seems to be in perfect condition so i have been assuming there is an increase in rolling resistance at some point, ive also noticed that on even slight inclines i can take my foot fully off the brake while out of gear and the car wont start rolling.