Front diff Crown Wheel size - Triton MQ

[lucian.wx]

Hi guys,
Does anyone know what is the Crown Wheel size in the front diff of MQ Tritons, manual gearbox?

I am interested to put a front locker and they are only available for 8 inch crown wheels.

I know that manuals have 3.692 gear ratio, while autos have 3.917. Does this mean that manuals have a smaller crown wheel and diff locks can not be used?