LX470 axle seals

Looks like my seals are leaking pretty good. Diff is still pretty full but would like to change out before road trip. Lexus.com says both axle where replaced last year at 138k. When baselining I changed out the diff breather. Completely rusted shut. My guess why both was leaking from the pressure in the diff. Thought by now it would have stop so I'm guessing they're toast. I checked on mud not to much there. Looking for first hand experience. 2005 with 145k bought used with full lexus maintenance history. Thanks
So dealer replaced and now both leak 7k later? Sounds like they did a poor job. I’d certainly try to get the dealer to cover the repair. They screwed up.