A fan shroud was installed on big trucks, this will retrofit to small trucks and is easy to install as it splits. Here are some pictures of the shroud it install on the same bolts as the radiator. I am unsure of the ordering or installation scheme, I have found four on 32 AD trucks, all identical and all on 2-tons.
https://www.flickr.com/photos/advance-design_parts_co/10039269655/in/album-72157631868452754/