Ford did not make replacement 29 front cross members but told their dealers to add spacers under the 30-31 frt cross member to make up the space under the radiator as everything else would work for a 29 frame using a 30-1 front cross member. It seems very strange to have a 30 frame with a 20 front cross member as that is exact opposite of what is most often seen when a frt cross member is changed out.