i changed mine today along with the rear main seal. man, talk about a job. however, i felt great after doin it. no more gunk and sludge under the car!! i got the blue felpro one piece gasket and let me tell you, that is one hell of a gasket. if you ever replace yours use the one piece gasket from felpro!

 

Did you put some RTV in the corners where the gasket hits the timing cover and rear main? That's where they tend to leak the most.