Can oil leak out breather on differential?

Yes, oil can leak out of the breather on a differential if the breather is clogged or damaged, causing excessive pressure to build up inside the differential housing. This pressure can force oil to escape through the breather vent. Regular maintenance and inspection of the breather can help prevent leaks and ensure proper function of the differential. If a leak is observed, it's important to address the underlying issue to avoid further damage.