Hi, I found a line drawing for a Subaru Justy 4wd and I believe it is almost the same as the Sambar unit.
The difference being Sambar's are 6spds while Justy's are 5spds and Sambar's use optional Diff Lock NA on Justy.
I have done a little magic to the drawing so that the orientation is correct as used in the Sambar.
Top of picture points to the front wheels.
It should give everyone a good idea of how the power flows from engine to wheels - both front and rear.
'91 Subaru Sambar SC KS4 c/w Diff Lock
Dyno'd at 69 HP@ Rear Wheels 61.5 ft/lbs torque