If by "U" shape you're referring to the core support, there was likely a horizontal bar across about center. The top would have a welded support as well as the upper radiator baffle. I say likely because I have a 38 car but the construction is probably similar. Attached is a photo of my 38 if that helps.
Save a life, adopt a senior shelter pet. The three main causes of blindness: Cataracts, Politics, Religion. Name your dog Naked so you can walk Naked in the park.
