Cold Case

So I went to install my new Cold case rad. and noticed that for some reason not know to me Dodge decided to bump out the drivers side of the rad support 1" more than the passenger side. Im sure they had a good reason for doing so with the stock setup but with my Gerst front suspension and motor mounts it made no sense to have a crooked radiator. Also by cutting out the offending offsets I gained more room for the fan, I now have 3 1/2 from the water pump pulley to the rad. I think I read somewhere on here that you need 3 1/4 spacing in order to run a Viscous fan clutch setup?
Which model radiator did you wind up using?