Quote:

On 3/4 and 1 ton axles the wheel bearings are lubed with gear oil from the diff. Pulling the axles will let the oil run out of housing and not to the bearings. Shoving a rag in the end stops the leaking and lub getting to the bearings. The hub flanges must be capped as if the axles are still in to keep bearings lubed.



OR as mentioned you can just grease the bearings and no longer have the need for the oil.

The bearings don't care if they are oiled, or greased, they just want to be happy and well lubed.