Here's a little something I slapped together to illustrate how the torque tube deal works.. at least it works this way on both the '50 1/2 ton and '46 1/2 ton.
[img]
http://www.oldtruckstuff.com/torquetube.gif[/img]
As you can see, the actual spinny driveshaft thing is a shaft within the.. well, I guess the "torque tube" deal.
Keep in mind, i'm no expert, just a shade tree hack who's had the misfortune of having to work on TWO of these things.
