I will have to see if I have the CDL switch connection in my harness when I get under there. If not I will have to add it. The transfer case will just bolt in.
For the shifter, I may have to enlarge the opening where the stick comes through. I removed the shift interlock from the transfer case, and am thinking about removing the interlock from the shifter. I would like to be able to shift from low to high at higher speed, with the rpm's matched. I'm just not sure how well that would work. If I do keep an interlock, it will be in the shifter. That way if it fails, I can crawl under the truck, disconnect the cable, and shift it on the transfer case. I have extra parts, and my TC adaptor made up to hold it on the transmission jack. I will start Sunday.
Steve