Replaced the door jamb switch with these guys from Rockauto. I think they were about $1.00 a piece. They fit well, and screw in nicely but there's a little wiggle in them. I would have preferred a more firm screw down. I'm going to add a washer to see if that helps.
Also on a side note, there is enough thread for you to adjust these to your door and door jamb make up. I would image all are similar but just in case, you can just barely screw it in for a long switch striker or screw it all the way down to push the striker further from the door.
Rockauto door jamb switch.
Switch with wiring pigtail plugged in.
Switch installed in the door jamb.