Personally I don't have much experience in this field, but I do know that custom autos blue single cab has their radiator relocated to the bed of the truck. I remember they have a radiator hose that splits into 2 hoses that feeds two separate radiators located maybe 1 1/2" apart from each other. They used AN fittings but no info on the sizes, best bet would be to call them and see what they say considering that truck doesn't seem to overheat since most of it's life is on the dyno or the track.
