Err, I meant the cars, not the vans. Sorry, I should have been more clear about that.
I ask because I have both an '82 D350 that I'm going to put previous-generation front clip sheet metal on to, and the '78 Cordoba. I actually have an extra radiator or two, I seem to luck out when I go to the junkyard, finding newly-installed ones in junked vehicles.
Tannon, if the width and height of the two radiator cores are the same, and the outlets are on the proper sides/positions, if you have the truck radiator that is bad, a radiator shop can change the mounting brackets from one to the other, if that is the issue. If the radiator physically fits, you can drill new holes and mount it any way you need.