I have a BW1356 transfer case (that's still in the truck). Some previous gorilla overtightened the pipe plug in the drain hole, causing a longitudinal hairline crack in the boss. It doesn't extend radially into the case itself, but when the plug is tightened down with Teflon tape, it spreads the crack just enough to cause a slow annoying drip. I tried cleaning the area and using Hylomar sealant before reinstalling the plug, but it still seeps.

Someday I will take it off, remove that cover, and fix it properly. In the meantime, is there any quick-fix, or at least something that can be done without removing the t-case? It is a real PITA to R&R it. The case is magnesium alloy so welding is not an option (certainly not while it's on the truck!)... drilling the crack is not likely to work because the pipe thread will just spread apart again.

I think I already know the answer here but still hoping. Maybe JB Weld?