Gearbox identification Help!

[Greener83]

Hi Guys

I hope someone can help I am in the process of breaking an e30, engine is a 2.7eta, which is available.. so just need some help identifying the gearbox.

i can only find the following numbers:

Getrag 240.0.0366.90
225 3.1 2
130381 bms

Any help greatly appreciated

Thanks