I have a '47 1.5 ton.
4 speed box, 20" dual wheels.
There is a uni at the back of the gearbox, one behind the centre bearing, and one on the diff pinion. Its a two piece shaft, all exposed, no torque tube.
Each uni is held in place with two u bolts in one plane, and fully captive on the other plane.
I'm figuring you have something different?
I undid the ubolts and it all wiggled off. As Crenwelge said, drop the centre bearing and it should come off.
