when I swapped my waggy 44/ford 9", the driveshafts bolted up to the axles - both were 1310 size.
but of course, thats a jeep 44.
I believe the pinion yoke will swap from a low pin d44 to a high pinion, but not sure.
there are also some tyes of conversion u-joints i.e. 1310 to 1330, etc, not...