Need help identifying a torque shaft

I'm almost ashamed to say I owned a 1968 Chevelle SS 396 many years ago. Sure looks like the Z bar for a big block//Muncie 4 speed.
It's funny that you would bring that up, I have one more car to restore when I am done with this 68 Barracuda and it happens to be a 1968 Malibu SS 396 325HP column shift auto,air, manual brakes, sunflower yellow, black vinyl top, black interior. This car has been sitting in my brother in laws garage since the mid 70's and has not budged. It has stuff piled all over it so I really can't see just how bad it is. His health is not good and when he passes my nephew asked me if I wanted it to restore. AHH YES!