Oil leak drives tires

From what I see it could be the axle flange leaking. I’d clean it up and see if you have more leakage or if someone did dump something.

 

There is a drain plug on the hub too that can leak into that area as well if its not the axle flange thats leaking.

 

They shouldn’t leak at all. Another thing to check to make sure the vent isnt plugged on the top of the diff. As the diff warm/cools it needs to be able to breathe to allow the oil to expand/contract with the heat to keep from over pressuring seals and causing leaks.

 

If it’s the flange or plug either will leak going down the road. The plug leaking should be easy to see. The flange not so much.

 

Hub cover bolts are loose.
You won’t be able to take em off with your fingers but they’re loose enough to leak

 

The flange gasket is leaking, try first making sure the bolts are tight and if they are, you may have to pull the axle and replace the gasket.

 

Perm #2 around the stud collars too...