Hey fellas, what causes gear oil to seep through the front diff breather? Its been 50K since my last change and from what i remember i didnt over fill it. The only time it sees 4 wheel drive is when the weather gets bad...other than that its a street qween.

 

contamination may be making the oil foam

or it is a bad breather. replace it

 

Breathers get cloged after awhile, there cheap just replace it.

 

replace the breather. probably clogs intermittently and causes pressure to build in the housing