Did you change it out with the other style and did it stop the leak? There are mechanic videos that show if your axle seals leak check for restrictions in the vent and once fixed the axle will no longer leak. Says replacing seals is not necessary once the restrictions are relieved it will no...
Would overfill cause enough pressure and cause seepage that would stop and be fine or would you still need replacement? Interesting that it stopped leaking and your levels are fine. Makes me hesitant on going to the dealer and having a new truck pulled apart.
Checked my 2021 Willys today after seeing this thread and a fb post and saw few oil spots on the inner rim and a small amount on the bottom of the back of the brake shield on passenger rear. Wiped it off and going to watch it. 250 miles is all I have on it. Purchased 6/9/21, build date 04/2021 ...