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So I recently tested the limits of the duramax and ended up popping a CV axle as well as universal joint on the front driveline. When the u-joint sheared off, it jolted the stub that goes into the transfer case, causing the housing to crack and drain the transfer case of its fluids... so when I pulled the transfer case loose from the transmission adapter, ALOT of transmission fluid came out. I'm talking at least a quart maybe 2. I wasnt expecting any fluid since most had drained out from the cracks and when I pulled the drain, only a few drops came out. The only thing I can think of was fairly recent, I had the tranny fluid changed and they had overfilled it. It made a huge mess underneath my truck. But would the overflow for the transmission allow it to get inside that sealed adaptor piece? I havent checked the transmission fluid level yet but if it's full, is there a way that the transfer case could hold that amount of fluid on the transmission side without properly draining? It's on a 2015 2500hd duramax. 1st time tearing into her so I want to make sure and fix what needs fixed before putting her back together