I'm still looking for a replacement radiator for my 74 Winnie. It has the 440 in it. It's was sitting @ the radiator shop for over a year and I just brought it back home a month ago. He told me we couldn't figure out how to pull it. That's my main issue as well.
I'm thinking of just cutting it out and getting it fix (recoil) and welding it back in place. I've search hi and low for a replacement radiator and info on how to remove the old one but no one seems to remember how it's done.
I'm trying to keep the old girl out of the scrap yard but if I don't get this thing running soon the county is going to force me to do just that...