Flex a Lite Clutchless fans

[MrSpArkle]

My car is overheating due to another bad fan clutch. I was looking at some Flex-a-Lite (http://www.flex-a-lite.com/auto/flex.htm) fans and figured that it would cost about the same as a new fan clutch and probably keep the car running cooler too. Has anyone installed one of these? What size fan and spacer should I buy?

[dmoffitt]

correct me if i'm wrong (cuz this is off the top of my head) but i think a single 14" or dual 12"s would work...