You're in luck.
After a little digging on SB forums I found the below.
The 1946 truck torque tube bushings Outside Dimensions O.D.
1.720 front O.D.
1.685 rear O.D.
It took me awhile to figure out that the reason why the
front bushing Outside Dimension is larger than the rear bushing.
Its because when you insert the rear bushing it expands the torque tube wall outward making its I.D. larger.
So in order for the front bushing to fit snugly they had to slightly increase the front bushings Outside Dimension.
This is more important on late 1950 press fit non-doweled torque tube bushings.
Did you see any dowel pins.?
Picture All torque tube bushings were slip fit and doweled from early 1950 back.
Master Parts catalog bushing page just shows bushing I.D. on some years.
There are variations in torque tube I.D dimensions
Okie Bushing instructionsSome people have frozen the okie bushing before inserting it into the torque tube.
This
POST has some more images and info.
