Where did you buy the spare radiators?
Unfortunately they weren't meant to be spares, When I bought the truck the previous owner had just put a new radiator in the truck, Spectra plastic and aluminum due to my SAS conversion the long V6 radiator that hung below the frame would not work. I did a 2" body lift when I did the SAS thinking I needed the room, So I bought the Mid length Spectra again plastic and aluminum.
THEN I decided I could re-arrange things and eliminate the body lift, so now that Radiator was too long. So I went to the smallest radiator built for the truck. a 4 cyl. manual trans for a Tacoma, all Brass Koyorad. And it just wouldn't cool a 5000# v6 truck while wheeling.
So the latest version is a 3 row all aluminum Champion, and honestly it could be too much radiator if that's even possible. That's part of running the trans cooler, partly because the auto can use all the cooling it can use wheeling, and the buffer the water temps.
All of them were in the truck less than weeks. I also have a custom built aluminum shroud with a 16" spal fan.
I've gone back to the stock fan due to space.
somewhere I have picks of the install.
ok, I bought them all from my local rad. shop I've done business with for 20 years.
I know more about the dumb radiators in these trucks than I need to.