John, I've updated my sig line to show the project truck. The 4045 is going into this '83 3/4T Chevy 4x4 which had a 6.2. Will use NV4500 with the stock 3.73s and 33s. Sorry for the confusion. The K5 gasser in former sig line, and profile, is currently my DD, and is not appropriately geared as you correctly pointed out.