I got home today and noticed some grease/oil dripping down the side of my gas tank. I followed it and its coming from the vent tube for the rear differential. I'm not sure why it would be leaking though. I haven't changed the fluid since 3 or 4 months ago. The only thing that happened today was I jump the median to make a u turn and it was a little higher and it hit it a little harder than i intended. Maybe this could have did something? Nothing bottomed out but i did bounce up and down pretty good. Thanks!