I was replacing the electric fan on my car with a mechanical fan and clutch and also a fan shroud. When installing, the fan shroud fit nice to the alum radiator. The problem i ran into is when installing the fan you can see that motor sits low off center to the radiator. The radiator sits as low as it can. The fan when mounted rubs on the bottom of the fan shroud. Not sure really how to fix it without cutting the bottom of the shroud. The radiator is an aftermaket alum 20" The fan is a standard 6 blade and 17". Shroud is a factory remake and should hold a 18" fan. Anbody with any information or a fix please let me know. Thank you, Mike