sierra5454

Looks like the housing is cracked. I was able to see the crack after putting the new drain plug in. I drained the fluid, cleaned it with brake parts cleaner and sanded the area around the crack. I put on some JB weld and holding out hope that this will seal it. It looks like a new housing is about $250 on rockauto.com. ACDELCO 19302452 GM Original Equipment . Any idea what I'm looking at to get this fixed?

Much appreciated.

Would it require the high temp or high performance? www.permatex.com/product-category/thread-compounds/thread-sealants/

Owner's manual does call for Dex VI. I'll have do take another look, but there wasn't any obvious fluid leaking down from above the plug. This is on a 2012 sierra.

It looks like I am dripping transmission fluid from the transfers case at the drain plug. I ordered a new plug and will drain and refill with new Dextron VI. When I install the new drain plug, should I coat the outer threads with black permatex? Will this make it very difficult to remove the plug should I need to in the future? Thanks,