so i have a 99 wagon 2.2 N/A and its been leaking oil from the rear main. well at least thats where it seems. how hard to replace and could it be something else? its coming from between trans and engine area.
It's as hard as removing the transmission, or removing the engine, so you can get to the rear of the engine itself. I've never removed a transmission by itself, but removing the engine is actually pretty easy.
As for what it could be, it could be either the rear main, or more likely it is the air/oil separator plate: