Simple Rear Diff Fluid Change - LubeLocker Gasket?

[wtd]

I used a lube locker gasket on the rear diff of my 14 Mustang GT when I installed a Ford Racing aluminum finned diff cover at 3,600 miles. The cover has drain and fill holes so I shouldn't have to remove the cover but if I do, I like the reusable gasket. Getting the factory sealer off was kind of a pain.