Hi, is the front diff where the drivers side drive shaft goes into???

What oil do I need for this, will normal ford oil do the job??

I assume I fill it using the hole in the side until it comes out???

And should ther be a gasket for the bottom plate or do is just use gasket sealer?

Sorry the the silly questions, as you can tell, I have limited knowledge on cosworths!

Cheers, Rich.