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Hi , I saw oil dripping out of breeder at t case , I just bought the car . It came with no AWC pump in trunk , so I did put it . I also did change Transmission Oil . It is the dual cluth SST trransmission . So now , I see dark-brownish oil coming out of breeder tube at transfer case , but I do also needed to put like 3 QT in AWC pump and still , after 10 minutes ride , need to be filled (reservoir) in trunk . But It would be like kind of more red oil than dark brown black oil if it would be mixing in T case ... I drained T case and yet oil seems to be really dark and liquid ...
I wonder if Transmission oil is mixing with T case , I saw one post like that . But why AWC reservoir always empty also ?
leak from undercar camera view to see breeder bleeding oil from T case
Yes. The seals inside the tcase seems to be compromised. I had this similar issue. I have a SST as well.
you will need to get the tcase rebuilt or get a used one.
If The internal seal inside the tcase is compromised. The tcase fluid will mix with the ayc fluid, resulting in the overflow.
for a quick remedy I disconnected the ayc by removing the fuse. I flushed my tcase and refilled. I drove like this for a few weeks until my tcase arrived.
Thanks for sharing . Now , I have opened the T case and found out that the visco coupler seals are done , like you said . But , I cannot find where to buy those seals or rebuild kit . ? do you have any clue ? Dealer doesnt sell them , I dont find on line ,,,
Last edited by canada; Feb 24, 2026 at 06:31 AM.
Reason: add a photo