Accessing the crank seal on a 964

[Ho Hum 74]

Folks,

I'm trying to get a look at my crank seal (one behind the pulleys) and possibly replace it on my 964 RSA.

I've done this before on my 911 and it requires a partial drop of the engine.

Can anyone tell me the order in which I do things in this case? It's a bit more complicated. And do I need to remove the shift coupler?

Thanks
Tristan