i have to start with a question before i do anything else, hopfuly i can turn this into a nother write unless you guys think there are enough e-fan upgrade how-tos. so the question: would a single 16" fan be big enough or should i go for something like duel 10"/12" fans (20"/24" respectably ) if i run one fan im only going to run one speed, if i run duel fans it will be both fans one speed. im looking at cooling fans and im not realy sure what i need for my truck size wise. its only a 4.3 with a 5spd so there is no oil/trans coolers. no a/c so i dont have to worry about that. there are obviously many sizes of fans available from 7" all the way to 16"+ fans. advice?