Weird whining coming from back end?

ive got a 98’ 2wd tacoma and I had to pin it in reverse to get out of some snow. I later heard a weird whining noise coming from my driver side ass end. But it’s not a clicking noise like a rear diff problem. Can someone please help?

 

Noises can be quite difficult .Even to figure out just where they come from .

AT or manual??

I had a few differentials over the years that screamed so loud you heard the vehicle coming from 2 miles away .

Yet never exploded while the vehicle was still in service.

Have you crawled under and looked at things something bent and rubbing ??

Wheel seal or pinion seal now leaking caused by a change in one of the bearings

Something changed now how the gears mesh is different causing the screaming .

 

Manual trans. No I don’t even know what to look for anymore. It’s hard to know unless you break something

 

I just noticed this on my 2wd 3.4 today. I also recently installed new larger rims and tires and have about 15-20 miles on them max. So maybe something is scraping or getting settled since they weigh like 20 pounds more...however it doesn't make this noise going forward.