I need 2 of the adapter tubes that go on the top of the heater unit, that the defrost flex tubes go onto. NOS or good used wanted. Part number is 8C 18520 . I will buy a complete heater case if priced reasonably. Don't care about the case or core being bad as long as it has the tubes. Contact me at bjmccloskey@***.net. I have a pic of a heater in the album on the Fordbarn.com site. It's not my heater, but one from U-Pay that I missed. If you think that you might have these, send me an email and I'll send the pic with one on it, so you'll better understand. I just posted a pic in my album , it's the black heater not actually mine ) with one elbow on it. My album title is 1950 Ford F-1 restoration.