Renault gearbox

Hello everyone!!

I am changing the gearbox of my car and I have encountered two possibilities.

The boxes are from Renault and the two are JC5.

I have looked at the manuals on the page and the reference of the boxes that I have available does not come out.

It is a JC5-072 and a JC5-084. The two are from a f8q diesel engine.

My question is whether someone from the forum could help me find the transmission relationship of these two boxes to see what differences are there or if they could tell me where to find this information.

Thank you all and greetings !!!