right know im running a 4 core radiator. what your saying makes sense but the reason i still am looking at the fan is because my fathers durango has a 5 blade fan and when he is towing it will kick on (at highway speeds). makeing alot of noise and colling the engine within 1 mineut. a new radiator is out of my price range although it would defently help. thanks

i really just am looking to know what CLUTCH fan blade is the best for colling this thing. not worried about drag. and 19.25 inch is the MAX. any sugestions would be helpfull. i dont even know what is on there just know it has 7 blades, is NOT stock equipment and makes very little noise when engauged and pulls way LESS air than my dads durango. about the same as my ford rangers little plastic clutch fan