This is a case of NOT knowing what I'm doing, really coming in handy! As I said yesterday, I was taking my digital photos with me to the wrecking yard, so I had a picture of the radiator out of the suburban to check for the correct setup. (Thank you Mike! - I hadn't even thought about that, except for the tranny holes) So the guy looked it up and told me it was a 28 something, and he had a 26 something, and I figured that might fit, barely. The thing is, it looks IDENTICAL to the one from the suburban, and I can't just look at something and tell if it's an inch or two longer or shorter. He promised it would work, and said I could bring it back if it didn't, $60, so I did it. Brought it home, dropped it in. Now I'm a very happy, crazy momma! In case, anyone needs to know: it was from a 1976 Cadillac Seville.