Front of the upper fan shroud...note I'm currently using wire ties to attach to radiator...I still have some grinding to do to either the bolts holding the snorkel fittings in or maybe drill a couple holes in the aluminum fan shroud so the bolds can just fit through....I kind of wished I'd thought about the drilling holes part earlier..I have already ground down the bolts somewhat...but I'm not too terribly bothered by it...haven't needed to unbolt those yet for anything so far...