Ok i notice a very small vibration when i would take off from a stop! only for abut 1 sec. Well i got home and opend the garage and saw a puddle of gear oil on floor. So i looked at the front seal! "Good" then i look at the rear seal! "Good" WFT! Well i look over at the vent tube on the driver side and grear oil is everywhere! any idea's why? I will look at it more latter! 10 deg right now!

 

just went to look one more time and looks like it is blowing it out?

 

My 2004 Heritage does the same thing but only if I park it on a slope with the box on the down side....I don't have the vibration though. My seals are good and everything but there is hypoid gear oil covering the diff.....

Beats me....it's cold here also....

 

well i was thinking the vibration was chatter from the rearend being low. I was told the vent hose is known to crack in cold weather