I am running this combo in the Blue K5, but haven't drove it in the winter yet. We are supposed to get snow within the next few days.. If we do, I will try it out and let you know.
Right now I am running: 10 Bolt front with Tru-Trac and 4.56's, 12 bolt rear with Detroit and 4.56's and 35x15.50 TSL's...
If you are looking for a pretty much locked up set-up for trail running, I would say no on the LSD up front. Save up your cash and get an ARB or OX(if they ever come out iwht a 10 bolt version).. The True trac seems to like to unlock when you need it most!