CV axle seal help

Hello I replaced my CV axle about 4 months ago. I just saw that I am leaking diff fluid from the where the CV axle goes in to the the diff. How far should I set the seal? I remember when I replaced it that I set the seal just a tad to far I think. Any tips would be great

Thanks,
Jake

 

It's should be flush with the side

 

I thought it was. Would something else cause it to leak?

 

IIRC the passenger side is flush and the drivers is set in till it hits the inner lip, not positive I've only done the passenger side

 

Plugged vent can cause the seal to leak