Took a quick break from work to see about attaching the transfer case to the transmission. Something is not letting them mate. The outer diameter of the output shaft is about 2 and 1/8”. The inner diameter of the seal on the transmission is about the same. They should slight right together. I cannot tell if the seal is what is keeping it from going all of the way in or not, but it appears to leave a gap of about 3/8”.