Does anyone have a Hollander interchange catalog covering '37 and '38 Buicks? I need to know if the running boards from a '37 and '38 interchange. I have been told from one source they are the same and from another that they have different part numbers. From pictures they look the same so I am thinking there might be a slight design change. I've seen notations in the Hollander catalogs that state a part will fit with minor alteration. I have one Hollander catalog but it's too new by a year or two.