I have a shep built Transfer case, and its leaking...its NOT leaking from where it mates to the transmission, it is leaking from what looks like to be the middle of the transfer case.(see picture attached below) is there a seal there? i'm not so familar with this power train, so please enlighten me! ive looked all over for cracks and what not, but its hard to see the whole case with out taking it out! thanks in advance for your time! look at the photo below, i circled in red where it appears to be leaking form