Gearbox issue

[Nicholas S12]

I am wondering if anybody tried a direct bolt on of a Datsun 180B SSS gearbox to an S12. I have found one and I want to use it for my S12 rally project as those gearboxes are really tough, have short gear ratio and the 1st gear is down.
This gearbox was attached to an L18 1770cc OHC engine with twin side draught carbs and was pushing out 120hp. I drove this car some years ago and I was amazed with this short ratio gearbox and the power that was developing. Of course the Datsun 180B SSS was build before the Silvia era.
Any tips.

[xstunna]

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