Yes, but I'm thinking about machining an adapter to attach to the original rear housing, and modifying a U joint to mate the Saginaw output shaft to the torque tune driveshaft. The one I'm working on currently will be used to mate a 1940's Ford banjo housing rear end to the Saginaw 3 speed. There's already a bolt-on front ball pivot that also serves as a rear trans mount for that axle.
www.ebay.com/itm/225834727514It would be fairly simple to machine a ball pivot to adapt that same casting to a Chevy torque tube ball.
Jerry