I am looking at purchasing a 1994 F350 Crew cab 4x4 7.3 but I am concerned about a transmission leak. The owner says that after pulling a heavy load that about a half quart of tranny fluid blows out of a small tube near the oil pan. After looking at the truck yesterday the owner said that after he drove the truck home that it did it again with no load being towed. Is this normal or will I be spending big bucks to get the tranny repaired? Thanks, Randy