Since the 4 row radiator is thicker, one way of installing it is to remove the top piece of the radiator support and move the radiator forward bolting to the front leg of the support instead of the rear leg. My friend got one out of a larger truck and had it recored. I don't know anything about the US Radiator products, I've always dealt with a local shop. We have one here in Wichita that is great to work with on older equipment.