What do I need to worry about when replacing all gaskets/seals in my transmission?, I don't want to do the transmission equivalent of letting out the magic smoke Options

[messick]

I've taken the engine/trans out of my car in my "get this six conversion back on the road after sitting for almost 20 years" quest, and since I'm in there, I'm replacing all the seals and whatnot that have obvious leakage issues going on.

Engine wise is pretty straight forward what's easy to do, and what requires something like splitting the case, so not too worried there. However, for the transmission, I'm not sure what I can do without making myself miserable.

I have the Erling gasket kit. And while the speedo, shift, input, and drive seals seem obvious, can I just take the case apart to replace the larger gaskets? The last thing I want to do is take everything apart to find out I need some sort of adjustment rig if I ever want it to go back together and shift correctly

I tried to find a writeup from someone either here or from the bird site that laid out all the steps, but I couldn't find anything about doing all the gaskets/seals in the kit. So if anyone has a link to one of those, that would be great.

Thanks all.