1997 Subaru Legacy Drive Belts

There is an opening at the back of the motor, between motor and bellhousing. As you turn the motor over, you'll see a deal come around that's meant for a large screwdriver or other pry-bar type device to stick in and lock the engine in place (hard to decribe, obvious what it is when you see it). With the engine locked in place, put the socket on the bolt and whack the end of the ratchet with a hammer or some such to break it loose.