it would not work because drivers side cv/axle would not fit without turning out of the Sierra carrier.
It was a 4 pinion.
I have no idea if it was a front or rear diff from the Sierra.
I scored a WT Sierra front 22 spline diff with a lock right fitted. (Thanks Leigh

Upon measurings and test fitting of the Vitara CV/axle, it appears the carriers are identical.
Even has the cotter pin to locate the diff cross pins.
Makes sense they would share parts among the different models.
(or somebody fitted a Vitara carrier to a widetrack?)
Plan is to fit the WT carrier with my Crown wheel and refit to my front diff.
Thus not having to disturb the set up of the locker.
(The Spartan locker let me down again, one side sticks in unlocked position when it wants to)
Can anyone tell me if I am wrong or right before I get stuck into it.
(Will now have to defer air locker to rear for a bit, Vitaras need front drive to be useful)