Fan/Condenser/Trans Cooler Spacing

I am on another forum that deals with these TBI trucks. Timing is controlled by the computer, but you can still check base timing to see if the timing chain that was installed was to spec (I am guessing thats what you can determine with checking the timing at idle on this set up). You can check fuel pressure which I am sure can affect your mixture, and check your O2 sensor is reading properly. I believe I can handle the fuel pressure and timing checks, how ever I have yet to figure out how to check and read the O2 sensor and what all that tells you.

is there a way to check tube sizes? I do believe the radiator is a little small for this application (especially with the condenser in front of that).

And that is where I am stumped. I can not get a good solid answer on when these cooling issues started. It ranged from when a remanufactured engine was installed (around 98) , to when the radiator was replaced (2001) , to when the original clutch went out (around 95-99). There are plenty of other things that were done to the truck between then and now that could affect it.

From what I did gather is that people have much better luck with the stock 5 blade fan than any other clutch fan. The general thought is that the radiator in there currently is not up to snuff for sitting in traffic in hot weather with the a/c on. So I can address those issues. However its going to be a couple weeks before I can get to the original fan (at my parents place) and going to take a little more time to source a radiator and get the funds for it... by that time the conditions of sitting in traffic in the hot weather with the a/c on will be passed us, so I wouldnt be able to verify if the changes corrected the issue until next summer.