I think the single versus double bottom mounts on the radiator support is a year model thing rather than little truck - big truck thing. My '51 has a double support on it, although it may have been changed over the years. The original radiator support had a 1/2" thick chunk of metal welded to the underside. That went in the scrap heap. I'd dig out my replacement, but it's about 4 layers deep in the storage trailer. My front crossmember has holes for either single or double support mounts. There are actually 4 holes, two oblong ones for the two-mount arrangement and two oblong holes aligned front-to-back for the single mount. That's also shown on the FAM for frame dimensions.
