I've got a Hypoid SG1 fluid leak on the front end of my 2014 GT AWD. I've wiped it down a few times to be sure it's coming from the arrow-indicated spot. My question is: How tough is it to replace that seal in there? And what would I tell a mechanic if it's more complex than I want to bite off? I'm calling it a Driveshaft Axel Seal, but I think that might refer to the side ones that go to the front wheels, not the one going longitudinally to the rear wheels. Any tips appreciated!