I hate to rain on the parade but the very LAST thing I would install into a TJ is an aftermarket radiator/electric fan kit. Really. Such kits, though this may be hard to believe after reading the advertising for it, don't cool nearly as well as a properly operating OE radiator and its belt-driven fan. Really, no exaggeration. I spend the majority of my time wheeling in hot desert conditions and it's common that we have to rescue TJs that are overheating with their aftermarket radiator/electric fans. They just, really, don't cool as well. Yes I know you're calling BS on this but it's the unexaggerated truth.
The ONLY time the factory cooling system isn't able to keep up with hot conditions, towing, etc. is when there is a repairable problem with it. Stuck coolant thermostat, bad fan clutch, or partially clogged radiator. My TJ is always towing my trailer up the mountain roads and/or wheeling in the desert and it just doesn't overheat. The only time it overheated was from a stuck thermostat which was easily fixed.
If your TJ is overheating, it's fixable for less cost than that kit you're talking about installing. Less trouble too.
More Wrangler TJ cooling system problems from having installed kits like that have been cured by nothing less than going back to the factory design. I know factory cooling systems aren't sexy but they work well so long as they're properly maintained.
In fact, I had to assist a guy 4 weeks ago on the trail when his TJ started overheating. His electric fan stopped working. We did some troubleshooting and found that his 10 month old fan thermostat had already failed. We had to ground that wire so the fan would turn on (all the time) so we could complete the trail.
This is a subject I'm very well versed in, these are not just rumors or old wive's tales I am repeating. I just hope you'll not be so enamored with the idea of that fancy electric fan that you can't change your mind. Really.
