as dojj put we had issues with mine but the set up is different..............

from what i can remember ( without checking the garage...)i was running a 24v 4wd setup with a 2.8 4x4 sump and a 2.9 mt75 4x4 box

we tried fitting the 2.0 diff to the 2.8 sump with no joy we then tried a 2.9 and again wouldn't fit but the 2.8 front diff did......the assumption then being that the 2.0 and 2.9 are the same with the 2.8 being different........