Hey y'all, have any of you guys gone to a clutch driven fan? I've got a standard 7 blade, iron fan that I feel must rob quite a bit of power. I swear that thing weighs a ton! I don't care for electric setups, just thinking about a clutch and maybe a lighter (aluminum?) fan. I just don't want to cut my cooling ability. Anyone have good experiences with a specific piece? Also need to put a thermostat in so I can get my temp gage working. Does a 160 or 180 thermostat work best for these? open for a link or suggestions