The 4x4 Blitzes have the differential offset to the right due to the transfer case, so the left axle shaft is long and the right shaft is short, neither of which will fit a carrier (unless you want to shorten and re-spline a long L shaft!)
The Aust carriers used civvy truck axles (with the diff centred), the part number being C99T-4235, both being equal length.
As to weather these are the same length as used in a 4x2 Blitz is something you will have to measure.
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