Check the brakes and hardware to make sure nothing is loose or missing. Also check for any rocks or other debris that could be causing the noise. What do you mean the wheel rocks a little, do you mean when its on the car and the lug nuts are torqued down it has some looseness? Could be a bad wheel bearing
sounds like the rear axle seal is leaking and the rear
bearing is bad. what needs to be determined is it brake
fluid or rear diff gear oil leaking. gear oil has a distinct smell.(stinks)
you need to do a good visual to determine which one.
Not sure if that one is FWD or RWD if I’m honest but if it’s RWD and you have a rear axle assembly it could be that it’s leaking and contaminating the brakes, not sure if that would be the source of the noise however if the axle bearing had failed it could account for a noise like that. If it’s FWD then I would suggest checking the brakes first and also checking the wheel bearing as mentioned for the RWD version as wheel bearings can cause noises like that. I’m not sure what the oil could be from if it’s FWD however.