I looked a little closer today and found that it looks like you could put a linkage lever on the shaft coming out of the side of the transfer case, but unlike the old 4 speed transmissions of the 70's and 80's, there is no hole in the center of the shaft to put a bolt and washer into to hold the lever in place. Does anyone have a picture, or know where a picture could be found, of the manual shift transfer case and linage used for the manual shift assembly?