Leaking differential fluid after CV change. I needed help please

I replaced both wheel hubs. Both axles for extended travel axles and one steering knuckle that was bent.
I had someone help me that I should have paid much more attention to. And he damaged the inner wheel seal, axle seal. So I guess the question is, why is it still leaking? What do I do about it?And do you think I need to replace my brand new extended travel axle because of this little thing you see in the picture

 

Where is it leaking..

 

Its leaking from where the axle goes into the differential. I replaced the axle seal inside th
e differential

 

Im gonna put some gasket maker around the place where the axle goes into the differential and well see

 

you should be able to get that gasket from somewhere. i would suspect a normal toyota gasket works.

either contact toyota, or contact the company you got the axles from. it sucks, but i doubt you're the first to screw up the seal.

 

Well, I did replace the axle seal, but this seems like it is part of the axle. Itself, but I'm going to contact the people like got the axle from ncy. That's a good idea thank you

 

So I guess I hope it's leaking from that little missing piece of flange, and I gotta say that rock auto is pretty cool because it's past the return period that they are. You're defending me the new one. So I order one, install it and return the broken 1. Pretty cool of them, but it still really sucks, and I really hope that that's the issue
Can anybody think of anything else that it would be