I checked non-engine oils on Friday for the first time. It's a new to me R80gspd. Final drive plug felt a bit funny coming out, like loosening fastener that had locktite applied. And a slight wobble. Didn't go back very well, wouldn't get tight. And of course now dripping. Looking for thoughts on short term fix (such as RTV) and long term fix (heli coil.) What do you think?