Yeah, hey have a built in washer and cap to prevent it backing off? I used the old one, parts guy said they do it all the time.
www.tousleyford.com sells OEM parts for 10% over cost, ask for Steve and mention the forums. I have saved 50% on some parts such as an emissions switch, $50. local and $25. from Steve and shipping was about what the tax would have been. THX All, Mark