Great info, thanks! I can fab my own mounts and brackets when needed. I was going to go with the 727 i picked up, i think the 4x4 transmission is completely different than a regular 2wd transmission, but not totally sure.
The output shaft/tailshaft housing are different between a 2wd and 4wd. The nice thing about the 47re is that you would have OD and Torque Converter lockup.