I'm not sure that the entire centre assemby will fit directly because of the pinion placement but the actual diff hemishere from a live axle Hilux 4WD will be compatible as it's an 8 inch G series diff. 2WD and 4WD Hiluxes have G series rear diffs.
The diff hemisphere in an independent front end Hilux 4WD has a smaller 7.5 inch F series diff.