I had a 1960 Willys CJ5 with a Buick 225ci years ago and with the stock fan it constantly ran hot even though it had that vertical grill with tons of airflow through the radiator. I changed it out to an electric and never had cooling problems again. I also picked up at least 1 mpg and the fan belt was able to be removed and changed to a shorter one that only ran the alternator. After a while I added a second so it had a pusher and a puller so when I was offroad or in traffic I could run both and never had a problem again. FYI they were both switched not thermostatically controlled. This is a mod I would definitely stand behind and if I do go ahead and get one of these will be doing it in the spring.