How long can a transfer case last (it is cracked and someone tried to patch it but it leaks) if it runs out of transmission fluid? I am wanting to go a 200 miles (round trip) to hit a junk yard for a transfer case, transmission, and body parts. I haven't pinpointed the crack and leak yet. But it seems everytime I park it after driving I get about 12oz or so of fluid on the ground. Just a ball park figure or do you think it will make it down there and back?