Thanks for all the suggestions and comments, I have replaced the seal and am waiting now to finish my transfer case rebuild to fill it up. I also noticed that there had at one time a leak from the top of the transmission, guessing there is an overflow of some sort up there or breather, but that is all dirty and not clean. That or the PTO cover has had a leak. I will keep replacing a seal at time till she stays dry I guess. Thanks again guys. don't feel it is coming from the cooling lines, it is coming from the other side of the transmission.
03 Chevy Silverado 2500 HD, K/N intake, PPE boost fooler, Edge hot juice w/monitor, 4" MBRP turbo back exhaust, Line X bed lining, B/W turnover hitch, Merchant Automotive xfer case pump upgrade