If the leak is coming from the hose with the white cap in the end of it that's your axle breather tube. Chances are your diff may be a bit full and while driving the gear oil in it heated up and expanded causing it to come out of the breather tube.
If the leak is coming from the hose with the white cap in the end of it that's your axle breather tube. Chances are your diff may be a bit full and while driving the gear oil in it heated up and expanded causing it to come out of the breather tube.