A body 4 speed in a truck. Can this be done?

A side note on the NP 435/445 (and maybe some three speed LWB applications, but haven't seen any in person to know...). The transmission used a bolt on rear drive yoke, and the slip yoke rode on the splined stubout that came through the carrier bearing. You would have to use a slip yoke out of the transmission and probably shorten the front driveline.