Another overheating issue, searched but need insight

[Jlhollowx13]

Hi all, I just purchased a 1988 4x4. It had a new water pump and radiator installed but the po left the fan shroud off. I drove it home and had to go over a few passes. On the last and worst pass I had to pull over and let it cool down. I figured the shroud was the problem so I installed it when I got home. Funny thing is the shroud was hitting the fan and the bottom of the shroud is in interference with the front axle. I made it work, but it seemed to have a lot of gaps around but I figured it should be fine. We went on a short trip and had to climb some long but semi gradual hills. Had to pull over a lot even with the shroud on. Van was running slightly over half going 65 on flat ground,rose slightly on most uphills.

I've done my research and the thermostat isn't oem but is new, so replacing that with new oem. Also I'm not getting the roar from the fa like everyone talks about, so replacing that as well.

My real quandary is this however, I only have my 2wd to compare it to, the 2 seems to roar when cold if I rev it up to about 1500 to 2000 rpm, don't really wanna go anymore than that. I drove the 2 the same trip and was not trying to be easy over the passes so that I could assess the condition of the cooling system and it didn't flinch, so I think its all good there and something I can compare to. But upon inspection of the shroud and radiator placement on both vehicles I realized they are sitting in very different spots. In the 2 the radiator is situated closer to the engine and the shroud is up against it and also enclosing the fan much more. There seems to also be something in front of the radiator, like an ac condenser or something but I don't know for sure, this does not exist on my 4wd, the radiator seems to sit more forward where that condenser thing is. This also causes the shroud to not be able to fit over the radiator correctly and in turn not surround the fan as well. I just don't get it as The radiator seems solidly supported which makes me think it's in the right place, but all I have to compare the 4x4 5 speed to is the 2wd automatic. The 4x4 does have a radiator from an automatic though. I've included some pictures to help illustrate but any help is appreciated! I just don't know if it's supposed to be different or not with the different models or how I can move it as I don't see any other supports.

Again, thanks for any help, I'm stumped. Usually you can tell where a part should go, especially a radiator!