The axle seals are now part number 90311-47013 and 90311-47027. I just swapped mine out as a part of doing my CV axles. Unfortunately, I can't remember which was left and which was right, but those are the part numbers for the seals.

My axles were part number 43430-60061. From what I can see in your picture, you at least have an OEM bell housing there next to the axle seal. The aftermarket ones I pulled off of mine did not have the notch on the tulip.

If you have known good OEM CV's, do not replace. At most reboot. But doing the axle seals is not a bad idea at all. Also keep in mind that the diff only holds 1.5 qts. You may not drain very much from it, though the picture you posted definitely looks like a leaky axle seal to me.