Help ! My front differential is leaking through the right axle seal. It has leaked before through the rear seal and got fixed. It is not much though and some will say it is just oil sweating. It's always with the front differential so after checking, I noticed its breather hose has a plastic cover on it. So that the hoses hole is closed. Should I remove this or is it there to stay. Do you have this breather hose from your front differential and is it closed or does it have a hole on its end ?