After Lifting truck I started smelling burning oil

I put my 886's with tps(which are coming off) on the truck about a week ago which is about the time I started smelling oil burning. Now I only state this because this I the only thing I have done to the truck lately. This may not have to do with anything, but I wanted to share. My main concern is that I don't want to damage the arb locker so I need to get this fixed to keep water out.

Is it possible that I pulled the CV from the diff which is causing the leak since the truck is at about 4 1/2 inch lift? I wouldn't think the CV could come out of the diff that easy.

I am pretty sure that I will have to replace the seal but looking for some good advice..

Grant