I just recently bought this bad boy, needs a lot of work obviously. But aside from that I'm new to the older subaru scene and I've been hearing that there is a fuse that I can remove to put the car into 2wd, and place back in to put it back into awd. I've looked in the fuse box overlooked the diagram a thousand times but can't necessarily locate anything related to the drivetrain. Could someone make me look stupid and tell me which fuse it is?

Thanks.