Mystery coolant leak

Hey guys I have a coolant leak from my 4BT and am convinced it’s my freeze plug , but I wanted to do my due diligence first before pulling the trans and T case to make sure that’s what it is . There’s coolant leaking from the bell housing cover dripping down to my sway bar and trans . No other obvious leaks . And unfortunately no access to the rear freeze plug due to the AA adapter to my 4L85E trans…. Anyone have the Cummins # for the rear freeze plug or pictures so I can see what I’m working with , couldn’t find anything on the web.