I have an H55F gearbox removed from a 1990 4 cylinder 2.5 TD VM on the bench in my workshop. Just went and checked it.
It has the F, 2F, 3F, H, 2H, 12HT type H55 input shaft. I do not know if this will fit a 1HZ but it definitely won't fit a 3B.
Let us know how you get on.