I need help with my rear

not likely,
But;you know those wheel bearings have to be packed full of grease before you install them ....... right? They do NOT share oil with the diff. When that happens, the oil runs into the brakedrums and makes a horrible mess.
I put new inner seals in, and packed the bearings before putting the axles in. Heat has something to do with it, since it's quiet when cold. When it makes the noise, it sounds like the wheel/axle, but it does it turning both ways. I think the rear noise is possibly telegraphing through the axles. Your thoughts?