Ok,i might catch some flak,but i replaced my mechanical fan with a 10" slim profile ebay fan. I simply ran a wire from the + power wire on the aux fan,and grounded the new fan on the battery hold down bracket bolt. So i have two fans on one relay,and i did this 7-8 years ago. I live in south carolina,and have not had any cooling issues at all. As long as your radiator is in good shape it works well. Ok flame on!