Dan, I checked out the link and it prodded me for application info. Said it won't fit a 71 Dart (my 73 has a 71 engine) Is this simply a new application part that happens to work in the old slants? I've got an ancient plastic elbow and metal base Fram pcv in mine and I've tried two of those cheap plastic ones like the other person had. Both rattle, whereas the ol metal Fram does not. Still want to replace it as a matter of maintainance. Thanks