Jack is right about the control box and the little fan. I'd be willing to bet that the main fan is one of mine as well.
"Running Hot" is a relative term. The SSR system is designed to operate between 195 and 226 as a "normal" temperature range.
There is a calibration procedure for the Auxiliary Fan on your truck. I can provide the installation instructions to you that have the calibration instructions included.
With an Auxiliary Fan installed and calibrated, your truck should never see temperature swings. We can do some simple testing to see that it is operating properly. Call me on my cell.... 480-225-2123 and I will walk you through it.
Regards,
Mike