[trularin]

It could just be a bad install. It's not like it couldn't happen.

Mike makes a good point, If it is not square to the crank shaft, it will leak.

Who's crate did you get it out of, Ford's or an engine builders? Does it make a diff? Yes.

Check the balancer, the housing to the crank and the seal itself. For that matter, make sure it is the seal and not a gasket in very close Proximity.

Just a thought.