Ok, I have a dana 44 front axle. I droke my rear driveshaft so I took it off to get fixed. So I lock the hubs and put it into 4 wheel drive to get home. On the way home from work today, I got to the house and noticed fluid coming from the vent tube. What stuff would cause this? I have a very thick (not stock) diff cover. And 4.88 gears. Would that do it?