1928-1948 Ford Radiator Support Mounting Kit. Here is a radiator mounting kit for your favorite Ford. As you can see, it includes new rubber pads, springs, bolts and castle nuts. Does not include cotter pins. The pads are 1 1/4" x 2 1/2" and the 3/8" fine thread bolts are 2 1/2" long. This might be the answer to that mysterious radiator leak. Not enough insulation between the radiator and the frame. Here is your chance to replace that old (possibly original!) kit at a reasonable price.