CVV Assembly Questions

[1ricardo]

Dear Friends

I´m rebuilding this 1976 911 coupe that i recently purchase, and i was removing the transaxle and CVV joint when i notice that on my assembly, for sure it was reassemble before, it does not have the CVV locking plate # 22 on the image neither the gasket # 19 on the image.
So, my questions are:

1-) It´s mandatory the #22?
2-) On the Porsche Exploded View it only show this part on the gearbox side, is that correct? Or I have to use on the wheel side as well?
3-) It´s mandatory the #19?
4-) Some places I see that I need 8 gaskets total for 1 car in other places I see that I need 4 gaskets total for 1 car
So, How many do I need?
5-) What´s the torque on these bolts?

Thanks

Ricardo